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anonymous
 one year ago
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
anonymous
 one year ago
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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