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An SRS of 400 American adults is asked, "What do you think is the most serious problem facing our schools?" Suppose 30% of them say "drugs." We can assign probabilities to values of ^p using the normal density curve with mean 0.3 and standard deviation .023. Use this density curve to find the probabilities of the following events: a) What is the probability of half of the sample agreeing that drugs are the most serious problem. b) Less than 25 % of the sample believes that drugs are the most serious problem

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