Scores on an exam have a normal distribution with a mean of 140 and a standard deviation of 14.Be sure to draw the normal distribution and shade the are being found.a) Find the probability that a person would score above 106.b) Find the probability that a person would score between 133 and 155.c) Find the probability that a group of 7 people would have a mean score above 150.d) Find the score needed to be in the top 10% of the class.