Question: AIDS-related risk factor. Exercise 16.1 introduced a problem in which a random sample of 2673 adult heterosexuals were asked about presence of an HIV risk

AIDS-related risk factor. Exercise 16.1 introduced a problem in which a random sample of 2673 adult heterosexuals were asked about presence of an HIV risk factor.

(a) Describe the sampling distribution of the number of individuals who are positive for this risk factor.

(b) Do you think a Normal approximation can be used to characterize the sampling distribution? Explain your reasoning.

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