The data set in Table 2.9 consists of the profits/losses (in millions of dollars) for a random sample of 20 companies.

a. Draw a histogram of the company profits/losses for this sample of companies using the default settings in Minitab.

b. Using Minitab, draw a histogram with 20 bins of the company profits/losses for this sample of companies.

c. Using Minitab, draw a histogram with 10 bins of the company profits/losses for this sample of companies.

d. Which of these three histograms is more revealing as to the distribution of the company profits/losses?

Table 2.9

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Profits/Losses (in Millions of Dollars) for a Random Sample of 20 Companies 24.1 105.8 -8.5 10.5 12.0 37.2 -27.8 26.4 226.7 -5.2 55.7 -67.3 19.5 -17.2 18.6 -37.1 104.5 1.3 38.7 -5.7