8. Suppose P is the proportion of successes in a random sample of size n from a large population with a true proportion of success p. What are the mcan and the standard deviation of the sampling distnbution of P in terms of n and p? The mean is p and the standard deviation is p(1-p). a. b. The mean is p and the standard deviation is /rp(1-p) P1-P C. The mean is np and the standard deviation is P. The mean is p and the standard deviation is

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