Calculating Mean and Understanding Measures of Central Tendency
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Questions and Answers

Which type of measurement scale classifies elements into two or more categories without any order or magnitude?

  • Interval
  • Nominal (correct)
  • Ordinal
  • Ratio
  • What type of scale has no absolute zero point and establishes equal distances between scores, in addition to ordering the scores?

  • Ratio
  • Nominal
  • Interval (correct)
  • Ordinal
  • Which type of scale not only orders scores but also has an absolute zero point?

  • Nominal
  • Interval
  • Ordinal
  • Ratio (correct)
  • What is a subgroup of the population used for statistical analysis called?

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

    Which numerical measure describes a characteristic of the population?

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

    What does the term 'statistics' originate from?

    <p>Latin word 'status'</p> Signup and view all the answers

    In ancient times, how was statistics primarily used?

    <p>To determine tax levies and military needs</p> Signup and view all the answers

    Which measure of central tendency is most affected by extreme values in a dataset?

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

    When a dataset is right-skewed, where is the peak of the distribution located in relation to the mean?

    <p>To the left of the mean</p> Signup and view all the answers

    In a dataset with multiple modes, what type of distribution does it represent?

    <p>Uniform distribution</p> Signup and view all the answers

    What does skewness measure in a statistical distribution?

    <p>Asymmetry of the distribution</p> Signup and view all the answers

    What is the mean of the first set of data provided?

    <p>30.5</p> Signup and view all the answers

    In the second set of data, what is the median?

    <p>32</p> Signup and view all the answers

    What does having multiple modes in a distribution indicate?

    <p>A skewed distribution</p> Signup and view all the answers

    When all values in a distribution are different, what happens to the mode?

    <p>It cannot be calculated</p> Signup and view all the answers

    Which measure of central tendency is most affected by extreme values in a dataset?

    <p><strong>Mean</strong></p> Signup and view all the answers

    In a highly positive skewed distribution, how do the mean, median, and mode relate to each other?

    <p><strong>Mean &gt; Median &gt; Mode</strong></p> Signup and view all the answers

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