StatTutor Lesson - Categorical variables: Pie Charts and Bar Graphs

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Categorical variables-pie charts and bar graphs 2009
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      Question 1

      111

      Question 1.

      Why does this bar graph represent a distribution?

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

      Questions 2-3

      152

      Question 2.

      Which of the following is the best graphic for displaying categorical data?

      		A.
      		B.
      		C.
      		D.
      		E.
      Incorrect. Bar graphs and pie charts are both appropriate for categorical data, but a bar graph is preferred.
      Correct. Bar graphs and pie charts are both appropriate for categorical data, but a bar graph is preferred.
      Incorrect. Try again.
      2