1. Suppose a professor gives an exam to a class of 40 students and the scores are as follows. (Type the data set in StatCrunch.)35444647474849515354555 55757575859595959606060606062626264 6869707273737575778288a. Find each of the following: i. Mean: ii. Median: iii. Standard deviation: iv. Z-score for a student who originally scored 54 on the exam: b. Create a histogram of the scores and comment on the shape of the distribution. (Use a separate page if necessary.)