Question: In a 2011 Time Money Magazine survey of adult Americans 61

In a 2011 Time/Money Magazine survey of adult Americans, 61% said that they were less sure that their children will achieve the American Dream (Time, October 10, 2011). Suppose that this result is true for the current population of adult Americans. A random sample of 16 adult Americans is selected. Using the binomial probability distribution formula, find the probability that the number of adult Americans in this sample of 16 who hold the above opinion is
a. Exactly 7
b. None
c. Exactly 9

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