Suppose that a recent poll found that 49% of adults believe that the overall state of moral values is poor. Complete parts(a) through(c).

(a) For 150 randomly selectedadults, compute the mean and standard deviation of the random variableX, the number of adults who believe that the overall state of moral values is poor.

The mean of X is 74(Round to the nearest whole number asneeded.)

(b) The standard deviation of X is ( ). (Round to the nearest tenth asneeded.)