Scores on the Final exam for Precalculus are normally distributed with a mean of 71.7 and a standard deviation of 7.5. Use the Standard Normal Probability and the Inverse Normal tables to answer the questions. a. If we choose a Precalculus student at random, what is the probability that his or her Final exam score is over 83? b. What percent of the exam scores are between 70 and 80? c. What is the minimum exam score (to the nearest 0.1) to be in the top 2%? d. The middle 70% of exam scores (to the nearest 0.1) are between and