Based upon extensive data from a national high school educational testing program, the mean score of national test scores for mathematics was found to be 605 and the standard deviation of national test scores for mathematics was found to be 216 points. What is the probability that a random sample of 324 students will have a mean score of more than 613? Less than 591? The probability that a random sample of 324 students will have a mean score of more than 613 is (Round to four decimal places as needed.)