Data Collection Sources Quiz

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Questions and Answers

What is the primary focus when making decisions based on data?

  • Facts rather than intuition or guesswork (correct)
  • Emotion-driven decisions
  • Blindly collecting data
  • Intuition and guesswork

Why is data cleaning important for accurate analysis?

  • 80% of a data analyst's time is spent cleaning and organizing data (correct)
  • Data cleaning is only needed for specific projects
  • Data cleaning is unnecessary for accurate analysis
  • Data cleaning is a tedious process

What is involved in the process of data cleaning?

  • Identifying and removing incorrect data (correct)
  • Ignoring incorrect data
  • Focusing only on data analysis
  • Blindly collecting data

What is the analogy used to emphasize the value of data?

<p>Data is the new oil (A)</p> Signup and view all the answers

What should be considered regarding the future use of data?

<p>Whether the data could be used for other projects in the future (D)</p> Signup and view all the answers

What is the primary focus of data cleaning?

<p>Identifying and removing incorrect data (A)</p> Signup and view all the answers

What is the main concern when coordinating data sources?

<p>Ensuring data is in a consistent format (C)</p> Signup and view all the answers

What is the key reason for making decisions based on facts rather than intuition or guesswork?

<p>To avoid bias or emotion (A)</p> Signup and view all the answers

What is the significance of building tables to organize and catalog the data?

<p>To better understand the data and identify any problems (A)</p> Signup and view all the answers

Why is blindly collecting data and looking for patterns not likely to result in long term profits and revolutionary discoveries?

<p>It may result in inaccurate analysis (D)</p> Signup and view all the answers

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