Question

Consider the two histograms given in Figure 2.25, which are drawn for the same data set. In this data set, none of the values are integers.
a. What are the endpoints and widths of classes in each of the two histograms?
b. In the first histogram, of the observations that fall in the interval that is centered at 8, how many are actually between the left endpoint of that interval and 8? Note that you have to consider both histograms to answer this question.
c. Observe the leftmost bars in both histograms. Why is the leftmost bar in the first histogram misleading?


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  • CreatedAugust 25, 2015
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