In her MAT135 class, professor Alayeb found that the mean score of the first exam was 87. Suppose that the scores are normally distributed with a standard deviation of 20 points. What is the probability that a randomly selected score is less than 59? P(x<59)P(x<59) = What is the probability that a randomly selected score is more than 61? P(x>61)P(x>61) = what is the probability that a randomly selected score is between 59 and 61 ? P(59 =