Consider the results of a small opinion poll concerning the chances of another stock market crash in the next 12 months comparable to the crash of 1987, shown in Table 17.4.4.

a. Fill in the “Total” row and column.

b. Find the table of overall percentages. Interpret these as estimates of probabilities in the population. In particular, what probabilities do they represent?

c. Find the table of percentages by type of person (stockholder/nonstockholder). Interpret these as estimates of probabilities in the population. In particular, what probabilities do they represent?

d. Find the table of percentages by response. Interpret these as estimates of probabilities in the population. In particular, what probabilities do they represent?

e. Does the response appear to be independent of the stockholder/nonstockholder classification? Why or why not?

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TABLE 17.4.4 Responses to the Opinion Poll on the Chances of Another Big Crash in the Stock Market Stockholders 18 41 52 19 Nonstockholders 26 65 68 31 13 Total Very likely Somewhat likely Not very likely Not likely at all Not sure 8 Total