The central limit theorem says that, when a simple random sample of size n is drawn from any population with mean  and standard deviation , then when n is sufficiently large a. the standard devi

The central limit theorem says that, when a simple random sample of size n is drawn from any population with mean  and standard deviation , then when n is sufficiently large a. the standard deviation of the sample mean is 2 / n. b. the distribution of the population is exactly normal. c. the distribution of the sample mean is approximately normal. d. the distribution of the sample mean is exactly normal.