A Random Sample Of $\mathrm { n } = 400$ Measurements Is Drawn from a Binomial Population with Probability of Measurements

Multiple Choice

A random sample of $\mathrm { n } = 400$ measurements is drawn from a binomial population with probability of success .21. Give the mean and the standard deviation of the sampling distribution of the sample proportion, $\hat { p }$ .

A) $.21 ; .008$
B) .79; .02
C) .79; .008
D) .21; .02