In her MAT135 class, professor Alayeb found that the mean score of the first exam was 60. Suppose that the scores are normally distributed with a standard deviation of 7 points. What is the probability that a randomly selected score is less than 55? (P < 55) = What is the probability that a randomly selected score is more than 87? P < 87) = what is the probability that a randomly selected score is between 55 and 87? P(55 < x < 87) =