In her MAT135 class professor Alayeb found that the mean score of the first exam was 74 Suppose that the scores are normally distributed with a standard deviation of 15 points What is the probability that a randomly selected score is less than 70 P x 70 What is the probability that a randomly selected score is more than 89 P x 89 what is the probability that a randomly selected score is between 70 and 89 P 70 x 89