Mathematics, 18.12.2021 04:50 Thrillseeker886

Suppose that 90% of all registered voters in a certain state favor banning the release of information from exit polls in presidential elections until after the polls in that state close. A random sample of 25 registered voters is to be selected. Let x be the number of registered voters in this random sample who favor the ban. (a) What is the probability that more than 20 voters favor the ban?

(b) What is the probability that at least 20 favor the ban?

(c) What are the mean value and standard deviation of the number of voters who favor the ban?

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