Suppose that a recent poll found that 66% of adults believe that the overall state...
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Suppose that a recent poll found that 66% of adults believe that the overall state of moral values is poor. Complete parts (a) through (b).(a) For 300 randomly selected adults, compute the mean and standard deviation of the random variable X, the number of adults who believe that the overall state of moral values is poor.The mean of X isThe standard deviation of X is. (Round to the nearest tenth as needed.)(b) Interpret the mean. Choose the correct answer below.A. For every 300 adults, the mean is the number of them that would be expected to believe that the overall state of moral values is poor.B. For every 300 adults, the mean is the range that would be expected to believe that the overall state of moral values is poor.C. For every 198 adults, the mean is the maximum number of them that would be expected to believe that the overall state of moral values is poor.D. For every 300 adults, the mean is the minimum number of them that would be expected to believe that the overall state of moral values is poor.
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