According to a​ study, approximately​ 60% of US adults believe that they have​ achieved, or are within reach​ of, the​ "American Dream"​ (that is, home ownership and financial​ stability). Now consider a random sample of 400 US adults. What is the probablity that over​ 65% of the sampled adults believe they have reached or are optimistic about reaching the American​ Dream?

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A: Solution

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