Data Preprocessing in Data Mining Quiz
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Questions and Answers

Which of the following is NOT a reason for data preprocessing?

  • Data integration and transformation
  • Data reduction
  • Data cleaning
  • Data visualization (correct)

    • What is one of the major tasks in data preprocessing?

  • Data cleaning (correct)
  • Data visualization
  • Data analysis
  • Data mining

    • Which of the following is NOT a measure of data quality?

  • Completeness
  • Accuracy
  • Complexity (correct)
  • Timeliness

    • Why is quality data important for data mining?

    <p>To make quality decisions</p> Signup and view all the answers

    What is one of the problems with data in the real world?

    <p>Data consistency</p> Signup and view all the answers

    Which of the following is a reason for data preprocessing?

    <p>Data cleaning</p> Signup and view all the answers

    What is one of the major tasks in data preprocessing?

    <p>Data cleaning</p> Signup and view all the answers

    What is one of the problems with data in the real world?

    <p>Incomplete data</p> Signup and view all the answers

    Which of the following is NOT a measure of data quality?

    <p>Efficiency</p> Signup and view all the answers

    Why is quality data important for data mining?

    <p>Quality data leads to quality mining results</p> Signup and view all the answers

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