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answer question 31 World\'s Policeman Eleven percent of likely U.S. voters think

ID: 3125823 • Letter: A

Question

answer question 31

World's Policeman Eleven percent of likely U.S. voters think that the United States should be the world's policeman. You randomly select five likely U.S. voters and ask them whether they think that the United States should be the world's Policemen. Face of the Company Seventy-nine percent of workers know what their CEO looks like. You randomly select six workers and ask them whether they know what their CEO looks like. The random variable represents the number of adults who cannot name a Supreme Court justice.

Explanation / Answer

No.of Percent who know their CEO look alike = 0.79
Mean ( np ) =6 * 0.79 = 4.74
Standard Deviation ( npq )= 6*0.79*0.21 = 0.9977

Expecetd no.of persons who know theie CEO look alike = np = 4.74