Job shadow thank you letter samplepráce

I need three graphics, they can be the same but one must be sized A4 for an email blast, one must be sized for Instagram and one 1920px X 450. They can be the same design, just reconfigured for the three sizes. This is for National Police Week May 12th - May 18th. Our entire store is on sale. I am including sample images as well as our contact information. I really like the sample image titled Police-Week. You can use that, size it according and include our logo and contact information. I am looking for a clean design. Again, I need three sizes, in JPG, PNG, and PSD.

...information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis's business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision-making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' names, etc. • Take pictures of the subject company and its vicinity per Confirmis’ standard operating guidel...

...work suits us). Key Features: The integration with the sample data for Gemini has been implemented. The short term focus is: 1. User profile (simple, like change username, password, logout) 2. Admin portal (allowing our admin to upload sample practice questions and solution instructions via this portal UI; currently we directly load the sample data to database tables, no UI). I'm seeking a professional with experience in AI and chatbot development (especailly Gemini) who can develop these features effectively. Currently only one subject - Maths, but there will be more to come. The Q&A workflow is similar though as above for other subjects though, the sample contents feed to AI might be different. We set the boundary, provide sample question...

I'm looking for a reliable appointment setter with excellent English skills to assist in booking estimates and jobs for my business. Key Responsibilities: - Answer phone to sell jobs and book appointments - Call leads to book appointments - Respond to emails related to bookings - Ensure smooth management of the appointment setting process Ideal Candidate: - Previous experience in the service trades industry - Strong communication and interpersonal skills - Proficiency in English - Experience with phone and email-based appointment setting - Familiarity with painting services, particularly in dustless popcorn ceiling removal, will be a plus. Please note that this role is specifically for dustless popcorn ceiling removal services, not general painting services. Prior experience in a...

I'm searching for a Metashop next js react woocommerce headless theme for my new e-commerce storefront. I need this theme If anyone has it please bid.

Hi, For this project, you need to develop from scratch using React.js, based on a sample design. Node.js will be utilized for the backend, with a project duration of 1.5 months. You won't be building everything from the ground up, but rather integrating existing modules. If you have no prior experience with chatbots or are unfamiliar with RAG (Retrieval-Augmented Generation), please do not bid! Please read the document below!

We are seeking an experienced [VA] to help us with our company tasks such as social media posts, research data entry etc... The ideal candidate should have a strong background in [LinkedIn Job posting - data entry - Google drive/sheets] The tasks are very simple, however, this will be ongoing, daily work for the foreseeable future. Must be reliable and consistent in order to be successful in this role

I'm looking for a talented video editor who can create a professiona...The Craps Coach I'm in need of a talented video editor who can create a dynamic, modern intro and outro video to be used on my you tube channels videos. Video should be 3-6 seconds in length. The video is to use the company name and logo. The intro video should include a template to be used in Premier Pro and have the ability to edit the video title on the Intro only. Template also have the words subscribe and link to you tube channel. I would like the video to include sound effects, specifically SFX. Color scheme: same as on website. Website: Key Elements: - Style: Modern - Emotion: Excitement - Color Scheme: same as on website If you do not know what the game of craps is, plea...

**Only looking for Sharepoint Design - Please do not respond with custom web development solutions** I'm looking for a freelancer proficient in Power Automate and Sharepoint Design to assist me with Data Synchronisation with Xero Practice Manager (XPM): You will need to setup and synchronize SharePoint List with XPM API (2-way) I need you to setup lists and synchronize the following data: - Clients & Contacts - - Staff - - Jobs & Tasks - - Time - - 1 x Document Set for Clients, and 1 x Document Set for Jobs

I'm looking for a grunge background design for my pictures. I will use it as a clipping mask later. Sample files are attached. - Black color design on a transparent background. Shading allowed - Vector file Please create a NEW design and show it to me. You can show it as black design or with a picture used as clipping mask.

I'm looking for an experienced professional to help create captivating social media video for our construction company. We would like to use an Airfield Concrete Repair project we are working on for the Navy, highlighting photos attached. Key Requirements: - Video Creation: The primary goal of the videos will be to share project updates and project scopes ...suggestions and professional advice, I would like the expert to be able to determine the best video duration for each platform. - Aesthetic and Branding: The videos should have a cohesive visual aesthetic that aligns with my brand. The successful candidate should have a proven track record of managing successful social media campaigns and creating engaging video content via photos. Please create sample video using p...

I'm in need of a professional logo designer who can redesign a logo for my brand that will primarily be used online for websites and various social media platforms. We are liking the possibility of using the V and make it a check mark. Also we like the letter M being used as the Symbol if there is to be one. We like all caps. Key Requirements: - The main purpose of this logo is brand recognition, so it should be easily identifiable and memorable. - The logo should be versatile enough to work well on various online platforms and bring out the essence of my brand effectively. The new name of the company is "MOTIVATE". It used to be GOALit, and we have changed it to Motivate. Please use similar colors. The company's purpose is to help people keep motivation...

I am looking for a talented scri...approximately 300 - 400 words. The script should center around funny workplace scenarios leveraging satire as the form of humor. I need you to develop characters such as a Boss, an Employee, and a Co-worker. I have some sample scripts and videos to give you an idea of what I am looking for. Ideal skills and experience for this job include: - Proficiency in script writing, particularly in creating comedic content - Strong acting skills, specially in performing comedic roles - Experience in developing office-based characters and scenarios - A sound understanding and knowledge of Satire as a form of humor - A knack for creating funny workplace dialogues and situations. If you are up for this interesting project, I welcome...

I'm in...Excel expert to assist in creating advanced statistical or financial functions. Your job will be to help me with these complex Excel tasks and generate charts or graphs as the final output. Key Requirements: - Deep understanding of Advanced statistical or financial functions in Excel. - Ability to generate visual representations through charts or graphs. Your role would entail: - Collaborating with me to understand the data and the desired outcomes. - Leveraging your expertise to implement the appropriate statistical or financial functions within Excel. - Presenting the results in a visually compelling manner through the creation of charts or graphs. Please share your relevant experience and any sample work you've done in the past that showcases your ...

I need a professional and compelling resume for a mid-level job application in the sales industry. The resume should highlight my skills, experiences and achievements, tailored to meet the specific needs and expectations of a sales role in this level. Ideal Skills & Experience: • Strong understanding of the sales industry, specifically for mid-level roles. • Proven record for creating job-winning resumes. • Exceptional writing and editing skills. • Good listener and communicator, capable of understanding and implementing my unique career details and objectives.

I'm in need of an experienced writer to craft a compelling cover letter for my student visa application to Germany. Your task would entail: - Highlighting my academic achievements, language proficiency, and relevant work/internship experience in a professional and captivating manner. - Ensuring the cover letter is tailored to the specific requirements of a German student visa application. Ideal candidates for this project should have: - Proven experience in writing visa cover letters, especially for student visas. - Excellent writing skills, with a keen eye for detail and the ability to craft persuasive, well-structured content. - Familiarity with the specific requirements and nuances of the German student visa application process would be a plus. Looking forward t...

As a fishing lure business, I require an experienced product photographer to accurately and attractively capture my range of premium fishing lures. The project involves: • Photographing 28 individual lures with 8 images of each. • The shoot will take p...premium fishing lures. The project involves: • Photographing 28 individual lures with 8 images of each. • The shoot will take place in a studio setting, a mini studio is acceptable. • You'll need to manage the lighting, positioning and angles to really make the lures stand out whilst ensuring a consistency across all the images. Ideal Skills and Experience: • Professional product photography (sample portfolio required) • Familiarity with studio lighting and equipment • Experience in ph...

- You are very familiar with Instagram. - You login to my account and search for users who recently wrote comments on posts in the travel and food niche. You write daily 20 personal and genuine comments on their latest posts. - You comment with a mix of ChatGPT and personal touch on their recent posts. NO generic posts. - You like some of their posts. The goal is to get many organic comments on my personal Instagram account.

...of a web-based job card system that will allow the creation and editing of digital job cards. Both employees and managers will need access to the system, with an admin login section for authorization of completed job cards. We would like the system to link with Quickbooks Online seamlessly, either through Zapier or an SQL database connection. This will allow completed job cards to be sent to Quickbooks for automatic invoice creation. Managers can then authorize on Quickbooks before sending. Key Functionalities: - Creation and Editing of Job Cards: The system should enable the easy creation and editing of job cards through a user-friendly web form by both employees and managers. Employees can then select their name from a drop-down combo box i...

...needs to be developed from Java language and Firebase as data base language(recommended) for storing any data. The app should only have following features, and no other graphics or extra designing is required. students can:  Browse and search for job opportunities posted by various companies.  Apply for jobs and upload their resumes and other documents.  Schedule and attend online interviews and tests.  Track their application status and receive feedback from recruiters.  Manage their profile and preferences. Recruiters can:  Post job vacancies and specify their criteria and expectations.  View and shortlist candidates based on their qualifications and skills.  Conduct online interviews and tests with candidates.  Provide feedback and offer letters to selected ...

I am in need of a professional who can competently handle data entry tasks. Your task will involve populating the first 80 entries of a job tools software board.

For my website, I'm looking for a talented developer to create an elaborate 3D image preview tool using ImageMagic and PHP. See attached image for sample of how the image will look. Key Traits and Skills: - Proficiency in ImageMagic and PHP HTML Duties and Responsibilities: - Develop a 3D image preview tool using ImageMagic and PHP The goal of this project is to create a tool that will enable us to effectively showcase product features and details. Although the application details were not specified, a demonstration of past 3D tool development projects would be beneficial.

...stakeholders Duration and Location: This is a contract position with an expected duration of [insert duration]. The role can be performed remotely, with occasional meetings or check-ins as needed. To Apply: Please submit your resume, a portfolio showcasing your geospatial analysis and visualization work, and a brief cover letter highlighting your relevant experience. Compensation: [Competitive hourly rate or project-based fee - Specify your desired compensation structure] Note: This job description is intended to convey information essential to understanding the scope of the position and is not exhaustive. Duties and responsibilities may be added, deleted, or modified as deemed necessary by the organization....

I need a skilled developer to modify a client-side executable file that connects to our gaming system. This file will allow users to interact with key features of our game. Key Requirements: - Modification of a client-side executable file through Configuration - Compatibility with Windows O...still connecting to the old URL which already does not work (Gacha, Guild). We need to replace it with our current server URL (change the url pinpointing). The solution must be dynamic which means we can later on change it again without needing another development again in the future. Game client file that pinpoint to our test server environment will be shared once we had start the project. A sample of config that currently we use to access this client file is provided within this project i...

...accuracy. * The partner needs to speak English fluently and in writing as well. * Images will need to be renamed at the end of the project to match the row of the card on the sheet * The project will not be considered delivered if there are inaccuracies, hence you need to double check all numbers and words. * Note that 99% of the cards are in English. For cards with multiple languages, if the information is also in English, only the English data is required. * The partner needs to report on the progress of the data entry * Sample of the scanned cards is attached (1900 cards (front and back) are scanned and 500 are images from phone in hand - the phone ones are also included in the attachments) Samples: * Multiple

Start with the word in the attachment. Start your offer with the word in the attachment. We are looking for a database with websites, HAVING EMBEDDED YOUTUBE Videos on their sites. Prepare a list with : Name of the company, youtube Link, PLZ, City, Phone, Mail, Website, Link @ impressum Niches: Fitness, Lifestyle, Wellness, fashion, sport article Area: German-... Link @ impressum Niches: Fitness, Lifestyle, Wellness, fashion, sport article Area: German-speaking (Austria, Germany, Switzerland) I would like to have at least 2000 websites with top-quality data. Delivery in one Excel file. Time of delivery is a key element in our decision. Offer a price for 2.000 data entries. To decide who is our partner and to see your understanding, please provide a sample with at least 10 dat...

...Mongolian into English. The final file will need to be a properly timestamped .srt that can be input into video editing software. You must be fluent in both languages and know how to properly format a .srt file with precise timing. I have provided a short clip of the interview to help you gauge your ability to understand the language. I will ask you to provide a sample of your work using this clip to be considered for the project. The full interview is 45 minutes long and the audio clarity is good. Throughout the interview, there are many pauses where a rough, verbal translation is given. You do not need to include any transcription during these portions—you only need to transcribe the parts spoken in Mongolian by the interview subject,...

...conversation ( no script) i will give you only Topics and you both speak according to topics. please mention these detils in your bids and attach conversation sample as well as. *Are you native European Portugues from Portugal? *did you attache one minuet group audio sample on your cover letter? *Have you a native partner for this conversation project? (with our sinario same room conversation)? Requirments- Native Portuguese (Portugal) Working tool- Our APP + Phone call Conversation time- total 1.5hrs with 6 topics(about 15 mins for each topic)/2 persons as a group. Payout: $60 (2 person as a group) total 1.5hrs with 6 topics. Its a one time project only. NOTE-: For this project we need a 1 minuet group conversation as a ...

Job Description: We are seeking a highly skilled Senior Software Engineer proficient in Rust, GoLang, and experienced in cloud technology. As a key member of our engineering team, you will play a crucial role in designing, developing, and deploying robust software solutions that power our platform. Responsibilities: * Collaborate with cross-functional teams to design and implement scalable, reliable, and secure software systems. * Develop high-quality code in Rust and GoLang to meet project requirements and deadlines. * Optimize software performance and ensure scalability across distributed cloud environments. * Implement best practices for software development, including code reviews, testing, and documentation. * Stay updated on emerging technologies and indust...

...information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis's business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision-making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' names, etc. • Take pictures of the subject company and its vicinity per Confirmis’ standard operating guidel...

...information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis's business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision-making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' names, etc. • Take pictures of the subject company and its vicinity per Confirmis’ standard operating guid...

...information provider specializing in connecting businesses with global capabilities; comprised of industry veterans, Confirmis's business model is designed to overcome perennial lack of data (let alone quality data) to support effective decision-making, particularly in developing economies. As a Site Verifier, you will be responsible for verifying a company’s existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Conduct basic verification with the subject company’s authorized representative, such as line of business, key executives' names, etc. • Take pictures of the subject company and its vicinity, as per Confirmis’ standard operating gu...

I'm seeking a talented graphic designer to create a modern and attention-grabbing tareaway logo for our brand. The logo will be utilized across various social media platforms in both square and profile picture formats, as well as printed materials like business cards and flyers. Key Project Requirements: - Create a tareaway logo that is based on our existing logo, focusing on the letter B. - The color scheme should be the same as our current logo - please refer to the attached file. - The font style should be bold and modern. Key Deliverables: - High-quality, resizable logo files suitable for social media and print. - Files in various formats (e.g., JPEG, PNG) to ensure compatibility across different platforms and mediums. Ideal Skills and Experience: - Proven experience in ...

I'm appealing to skilled Photoshop freelancers to enhance a series of home decor product photos. You will produce 2-3 images, primarily focusing on upgrading the current background to a nature-themed or an interior setting. This aim is to make the product more sellable by giving it an attractive professional look. Please find attached photo of the humidifer on white background and some inspiration from the manufactuer, the idea is to keep the red flame and add background of your own. I also attached some sample of photos of products we did before so you know of the work we did on our own. They are properly named "before" and "after." Your primary tasks are: - Changing the existing product photo background with either a nature-themed backdr...

...Stripe account unexpectedly closed, I am seeking adept legal assistance to navigate through this scenario. My primary objective is to successfully transfer funds from my now-closed Stripe account. Key responsibilities in assisting with this task include, but are not limited to: • Reviewing and understanding the specifics of my predicament • Drafting and sending a comprehensive, persuasive legal letter to Stripe to facilitate fund transfer Skills and experience I’m looking for include: • Proficiency in contract law • Previous experience dealing with financial disputes and closures • Familiarity with Stripe's policies and procedures • Excellent communication and negotiation skills, both written and verbal It’s advantageous if a fr...

I'm seeking a skilled designer to create a modern basketball team logo for “B Magic". The logo should incorporate the capital letter 'B' and the number '35'. The ideal candidate has experience with sports logo design and a modern aesthetic. Note: - Color preference for the logo was not specified. So, please use your creativity and professional judgment. - Although it wasn't specified how the number '35' should correlate with the letter 'B', creative proposals are welcome.

...project named "TANIA". This logo will be a central part of our branding and marketing efforts, symbolizing our commitment to cutting-edge security and technology. Design Requirements: 1. **Logo Name:** The logo must incorporate the name "TANIA". The name should be easily readable and stand out as the primary element of the logo. 2. **Symbol Integration:** Incorporate a stylized key into the letter 'T' of TANIA. This key should not only represent the traditional concept of encryption and security but also blend seamlessly with the modern and technological feel of quantum cryptography. (see picture attached) 3. **Style and Theme:** The overall style of the logo should be modern and sleek, reflecting the advanced and futuristic technology of quantum...

Are you a skilled video editor with a passion for education? We're looking for a talented individual to join our team on a part-time basis to help create engaging and informative content for our YouTube channel. Responsibilities: Edit raw footage into high-quality, engaging videos suitable for our educational content. Incorporate graphics, animations, and other visual elements to enhance the educational value of the videos. Collaborate with our content creators to ensure videos meet our brand's standards and objectives. Ensure timely delivery of edited videos according to the production schedule. Requirements: Proficient in video editing software such as Adobe Premiere Pro, Final Cut Pro, or similar. Experience in creating educational or instructional videos preferred. ...

...Providing detailed information about our company. 2. Streamlining and strengthening our sales/conversion. 3. Opening a direct channel of interaction with our customers. 4. The website you'll be developing will primarily host a variety of products and its product related blogs, Sample ordering. As a web developer, your responsibilities will include constantly updating these sections. We need a developer with superior communication skills, capable of understanding our needs and incorporating them into the site. take a sample website Ideal skills and experience for this role include proficiency in back-end and front-end development, familiarity with corporate website requirements, and proven track-record in delivering similar projects. Applicants with strong desi...

...looking to break into the Canadian job market in a similar field, I require their expert advice on the following aspects: - **Resume Preparation & Optimization**: Assistance in presenting my current experience and skills in a way that appeals to Canadian employers in the corporate sector. - **Job Search Strategies**: Comprehensive strategies tailored to the Canadian market to help me secure relevant corporate positions. - **Interview Tips & Techniques**: Guidance on how to perform well in Canadian job interviews, particularly for corporate roles. Expected Application: I am most interested in a freelancer's previous experience in a similar field. Please include your experience as a consultant or a professional in marketing, operations or white coll...

...web designer to help me build the design for a shooter game. Your job will be to create a stunning visual template of how the website should look like and then i will have it programmed. Please share samples of your work so i can estimate the quality of what i can expect. Key Project Details: - The main goal of this website is to promote the game, so it should have an engaging and interactive design to draw in gamers. - The target audience for this website is primarily gamers, so the design should be tailored towards this audience. - there should be an interactive part where a background video is displayed and a specific area where the game trailer is displayed. - the "play now" button needs to be prominently placed. - you will be provided high quality graphics ...

I need a graphic designer well-versed in creating minimalist, uniform, and understandable flat line art SVG icons. The icons will primarily serve to embody our services accurately. Influenced by Scandinavian simplicity, it's essential that the designs are monochrome, aligning with our modern brand aesthetic. The successful...services accurately. Influenced by Scandinavian simplicity, it's essential that the designs are monochrome, aligning with our modern brand aesthetic. The successful freelancer will create these distinct icons enhancing our website's visual appeal and improving user navigation. An understanding of minimalist Scandinavian design and prior experience in icon design would be ideal for this project. A sample icon for reference is attached. We will nee...

...passionate, and loving brand image. The slogan can be used as the title of the work, or placed underneath the logo and submit together. ---------------------------------------------------------------------------------------------- We hope you can take the time to read our brand story carefully, which will play a very important role in shaping the brand image: The story of MJ Premier begins with Michael, the husband of our founder, Mrs. Jennifer. Jennifer's childhood memories are seared with darkness and fear. When night fell, fear followed her like a shadow until she met Michael. At first glance, Michael is a quiet but thoughtful young man whose world seems to consist only of his studio and his handmade lamps. Whenever he was immersed in his creations, there was al...

I'm looking for a dedicated professional well-versed in graphic design, web design & development, Mobile App Development, and digital marketing services. Your primary responsibility will be Website Design & Development. However, a broader set of skills including the ones mentioned will significantly improve your chances. Ideal Candidate: - Profici...design & development and digital marketing services Please include past work related to Google and Facebook Ads in your application. Relevant work will significantly help me determine if you're the right fit for this project. I'll appreciate a show of versatility across the range of required skills. Only serious candidates are welcome. Looking forward to cooperative work. We'll provide you experience ...

I need you to create a Photoshop template for me where I can images behind letters in our logo. One image behind each letter. If you see attached screenshot you will see an example of what I need. You see there are kind of letters and shapes with images. I attached the logo. RHOME. What you need to do is to make a photoshop file, where I can ad/change out images that are behind the letters so I can create the same look. This is a super simple and quick project so I am not going to pay more then 10 dollars for it. So please dont even bid if you want more money. I need it done within one hour from project start.

Looking for SEO experienced team in "Shower and Faucet" niche specifically. Find me best keywords and time frame to achieve TOP 10 ranking (1st page in google) for th...google) for those keywords. 60 keywords SEO and 200 Backlinks. Report on a weekly basis (every Friday) On page and off page SEO. White Hat Techniques only!!! As well familiar with new Google update. You need to show me your record of success. Tell me about how you will do that / your method and time frame. We will release payment at the end of each month. Please mention "SEOEXPERT" in top of your cover letter so i will understand you read the project well , else we will hide your bid. PLEASE NOTE : We are not looking for generalized SEO and random link building. Looking...

...bedside crib or co-sleeper is a baby cot where one side is open towards the side of the parent bed so that the parent can easily reach the baby at night. Our manufacturer has crafted an initial prototype based on his own technical sketches. We therefore have a sketch of all elements of the bed including dimensions and specifications. For our second sample, we would like to have the documentation ourselves incorporating adjustments for the first sample. We anticipate three rounds of iterations before the design is complete. Assignment - Documenting the dimensions and specifications of a bedside crib - Create a 3D rendering of the bedside crib - Ownership and handover of all files - Conduct three iterative revisions to perfect the design...

...basis. In this position, you will be responsible for some recurring tasks everyday, Read our product reviews & feedback, Checking for Unfulfilled Units online, Handle customer queries via Amazon/eBay, Check UPC, Assist in FBA fee checking,etc Requirements: - Prior experience with Amazon activities (preferred). - Should know how to use Google Sheets (required) - Always connected via computer or mobile device. - Strong English communication skills. - Capability to follow instructions and work effectively with minimal supervision. - Freshers and newbies who are eager to learn can also apply. How to Apply: If you are interested in becoming a member of our team, please thoroughly review the information above and include the word “Yellow” at the beginning of yo...

I am in the process of launching a job portal where employers can post jobs, and job seekers can search for and apply to these opportunities. However, one critical aspect remains unfinished - Google AdSense approval. My website is less than 6 months old and I need an expert to guide me through the AdSense approval process for my site. The ideal candidate for this job will have: - Experience in obtaining Google AdSense approval for similar sites. - In-depth knowledge of Google AdSense policies and guidelines. - Proven track record in resolving any issues that may hinder approval. If this sounds like you, and you have the skills and experience to make my website Google AdSense-ready as soon as possible, then I would love to hear from you.

I'm in need of a freelancer who can take a look at our HR survey data. The objective is to analyze the data by performing the following tests: Kolmogorov-smirnov test (for one sample and for two unrelated samples) Kruskal Wallis - H Test ANOVA T Test for two unrelated means General Liner Model Ordinal Logistics Regression Spearman Correlation Pearson Correlation