Intro to Stat_Part_7

# Intro to Stat_Part_7 - 35 b What percent of the community...

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35 b. What percent of the community is under age 35? c. Which box plot most resembles the information above? Exercise 2.13 Suppose that three book publishers were interested in the number of ﬁction paperbacks adult consumers purchase per month. Each publisher conducted a survey. In the survey, each asked adult consumers the number of ﬁction paperbacks they had purchased the previous month. The results are below. Publisher A # of books Freq. Rel. Freq. 0 10 1 12 2 16 3 12 4 8 5 6 6 2 8 2 Table 2.6

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36 CHAPTER 2. DESCRIPTIVE STATISTICS Publisher B # of books Freq. Rel. Freq. 0 18 1 24 2 24 3 22 4 15 5 10 7 5 9 1 Table 2.7 Publisher C # of books Freq. Rel. Freq. 0-1 20 2-3 35 4-5 12 6-7 2 8-9 1 Table 2.8 a. Find the relative frequencies for each survey. Write them in the charts. b. Using either a graphing calculator, computer, or by hand, use the frequency column to construct a histogram for each publisher’s survey. For Publishers A and B, make bar widths of 1. For Publisher C, make bar widths of 2. c.
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## This document was uploaded on 10/31/2011 for the course STA 2023 at University of Florida.

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Intro to Stat_Part_7 - 35 b What percent of the community...

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