StatTutor Lesson - Quantitative variables: Histograms

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Quantitative data-histograms 2009
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      Questions 1-2

      115

      Question 1.

      What type of data can be displayed with a dotplot?

      A.
      B.

      Incorrect. Dotplots are only valid for quantitative data.
      Correct. Dotplots are only valid for quantitative data.
      Incorrect. Try again.
      2

      Question 3

      220

      Question 3.

      Why does this histogram represent a distribution?

      A.
      B.
      C.
      D.

      Incorrect. A distribution gives a list of the possible values of the variable together with how often each value occurs. This histogram does both.
      Correct. A distribution gives a list of the possible values of the variable together with how often each value occurs. This histogram does both.
      Incorrect. Try again.
      2

      Question 4

      277

      Question 4.

      True or false: Changing the width of the classes did not change the appearance of a histogram.

      A.
      B.

      Incorrect. The opposite is true. Changing the width of the classes does change the appearance of a histogram.
      Correct. The opposite is true. Changing the width of the classes does change the appearance of a histogram.
      Incorrect. Try again.
      2

      Question 5

      289

      Question 5.

      True or false: Changing the number of intervals or changing the width of the intervals changes the appearance of a histogram.

      A.
      B.

      Incorrect. This is a correct statement.
      Correct. This is a correct statement.
      Incorrect. Try again.
      2

      Applet

      302

      Questions 6-8

      340

      Question 6.

      True or false: Histograms are appropriate for either categorical or quantitative data.

      A.
      B.

      Incorrect. Histograms are only appropriate for quantitative data.
      Correct. Histograms are only appropriate for quantitative data.
      Incorrect. Try again.
      2