Bar Charts and Pie Charts
Bar Chart: Displays the frequencies of a nominal variable as bars on a graph. The height of each bar represents the frequency of the corresponding category.
Pie Chart: Displays the relative frequencies (proportions) of a nominal variable as wedge-shaped sections of a circle. The size of each section represents the proportion of the corresponding category.
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Question 1 of 2
1. Question
Which of the following statements about pie charts is false?
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Question 2 of 2
2. Question
Bar and pie charts are graphical techniques for nominal data. The former focus the attention on the frequency of the occurrences of each category, and the later emphasizes the proportion of occurrences of each category.
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