The Dean of Admissions in a Large University Has Determined

Multiple Choice

The dean of admissions in a large university has determined that the scores of the freshman class in a mathematics test are normally distributed with a mean of 82 and a standard deviation of 8. Based on this information, what is the probability that the mean score of a sample of 64 students is at least 80?

A) .0987
B) .4772
C) .5987
D) .7885
E) .9772