12. A school psychologist is looking at assessment scores from the end-of-semester final. She takes the entire set of scores from the school and finds the mean to be p=85, with a standard deviation of 10 points. (this is a population) First, she wants to find the probability of drawing an individual score = 83 points or above from this data set. a. What is the probability of drawing a score of 83 or above? b. Now find the probability of getting a sample mean = 83 or above using a sample size = 100. c. Explain why there is a big difference between a and b