Chapter 1: Q 126. (page 80)
Multiple Choice Select the best answer for Exercises 123–126.
Which of the following boxplots best matches the distribution shown in the histogram?

Short Answer
Option (a) is correct.
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Chapter 1: Q 126. (page 80)
Multiple Choice Select the best answer for Exercises 123–126.
Which of the following boxplots best matches the distribution shown in the histogram?

Option (a) is correct.
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Acorns and oak trees Of the many species of oak trees in the United States, 28 grow on the Atlantic Coast and 11 grow in California. The back-to-back stemplot displays data on the average volume of acorns (in cubic centimeters) for these 39 oak species. 29 Write a few sentences comparing the distributions of acorn size for the oak trees in these two regions.

U.S. women’s soccer—2016 Earlier, we examined data on the number of goals scored by the 2016 U.S. women’s soccer team in 20 games played. The following dotplot displays the goal differential for those same games, computed as U.S. goals scored minus opponent goals scored.

Part (a). Explain what the dot above 3 represents.
Part (b). What does the graph tell us about how well the team did in 2016? Be specific.
Easy reading? Here are data on the lengths of the first 25 words on a randomly selected page from Toni Morrison’s Song of Solomon:

Part (a). Make a dotplot of these data.
Part (b). Long words can make a book hard to read. What percentage of words in the sample have 8 or more letters?
Traveling to work How long do people travel each day to get to work? The following table gives the average travel times to work (in minutes) for workers in each state and the District of Columbia who are at least 16 years old and don’t work at home. 3


Part (a). Make a histogram to display the travel time data using intervals of width 2 minutes, starting at 14 minutes.
Part (b). Describe the shape of the distribution. What is the most common interval of travel times
Mean salary? Last year a small accounting firm paid each of its five clerks \(32,000, two junior accountants \)60,000 each, and the firm’s owner $280,000.
(a) What is the mean salary paid at this firm? How many of the employees earn less than the mean? What is the median salary?
(b) Write a sentence to describe how an unethical recruiter could use statistics to mislead prospective employees.
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