Introduction to Data Science
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Questions and Answers

What is data?

Data refers to raw facts and figures that can be processed to extract meaningful information.

Data science is a multidisciplinary approach combining mathematics, statistics, artificial intelligence, and computer engineering.

True

Which of the following is an example of unstructured data?

  • Time series data
  • Geographical data
  • Digital pictures and videos (correct)
  • Weather data
  • Which of the following sources does data science utilize?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of data science?

    <p>The purpose of data science is to extract meaningful insights from data for business applications.</p> Signup and view all the answers

    What are recommender systems used for?

    <p>Recommender systems are used for predicting user preferences, such as movie ratings.</p> Signup and view all the answers

    How is data science applied in healthcare?

    <p>All of the above</p> Signup and view all the answers

    Study Notes

    Data

    • Data can be numbers, text, images, videos, audio and more.
    • Data can be structured or unstructured
    • Examples of data include:
      • Numbers: 10, 25
      • Text: Kharagpur, 10CS3002, [email protected]
      • Location: 100.0, 0.0, 250.0, 150.0, 220.0, 300.0, 110.0
    • Data can be organized by time, location or category

    Data Science

    • Data science is the process of extracting meaningful insights from data.
    • Its goal is to use data to make better business decisions.
    • Combines principles from mathematics, statistics, artificial intelligence, and computer engineering.
    • Data scientists are obsessed with data, and focus on:
      • Finding and acquiring data
      • Cleaning and transforming data
      • Understanding relationships in data
      • Delivering value from data
      • Visualizing results

    Sources of Data

    • Sensors
    • Internet
    • Market
    • Social Media
    • Medical Data
    • Business
    • University
    • Digital Pictures and Videos

    Applications of Data Science

    • E-Commerce:
      • Amazon and Flipkart use data science to provide personalized recommendations
    • Recommender Systems:
      • Used to predict user preferences, recommend movies, products, or services
    • Healthcare:
      • Used for detecting tumors, discovering drugs, and analyzing medical images.

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    Related Documents

    Lect2-What is Data PDF

    Description

    This quiz covers the essential concepts of data and data science, including data types, sources, and its applications. Test your understanding of how data is used to extract insights and inform decisions across various fields. Perfect for beginners interested in the world of data analysis.

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