IQ scores are normally just distributed With a mean of 105 in a standard deviation of 15. Assume that many samples of size and are taken from a large population of people and the main IQ score is computer for each sample.

IQ scores are normally distributed with a mean of 105 and a standard deviation of 15. Assume a. If the sample size is n -64, find the mean and standard deviation of the distribution of sampl The mean of the distribution of sample means is