Answer :
The requried, height of the purple bar on the relative frequency bar graph is 22, and the answer is (D) 22.
What is Statistic?
Statistics is the study of mathematics that deals with relations between comprehensive data.
Here,
Since the vertical axis of the bar graph is marked off in percentages, we can determine the height of each bar by multiplying its frequency by 2, since 50 students were surveyed (i.e., 100% of the sample size).
The frequency of the purple color pattern is 11, so its height on the bar graph is 11*2 = 22.
Therefore, the height of the purple bar on the relative frequency bar graph is 22, and the answer is (D) 22.
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