Scores for a common standardized college aptitude test are normally distributed with a mean of 490 and a standard deviation of 106. Randomly selected men are given a Test Preparation Course before taking this test. Assume, for sake of argument, that the preparation course has no effect. If 1 of the men is randomly selected, find the probability that his score is at least 530. P(X > 530) = Enter your answer as a number accurate to 4 decimal places. If 18 of the men are randomly selected, find the probability that their mean score is at least 530. P(M > 530) = Enter your answer as a number accurate to 4 decimal places.