In a typical day 31 of people in the united states with, Ask an Expert

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In a typical day, 31% of people in the United States with Internet access go online to get news. You randomly select five people in the United States with Internet access and ask them if they go online to get news. Find the probability that the number who say they go online to get news is (a) exactly two, (b) at least two, and (c) more than two. (Source: Pew Research Center)

(a) construct a binomial distribution,

(b) graph the binomial distribution using a histogram and describe its shape,

(c) find the mean, variance, and standard deviation of the binomial distribution and interpret the results in the context of the real-life situation, and

(d) determine the values of the random variable x that you would consider unusual.

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