Below are the final exam scores of twenty introductory statistics students. 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94

Create a box plot of the distribution of these scores. The five number summary provided below may be useful.

Min Q1 Q2 (Median) Q3 Max
57 72.5 78.5 82.5 94

For each of the datasets (i and ii) listed below, find:

a. Mean
b. Median
c. Variance
d. Standard Deviation

i. {0,1,1,4,5,5,6}
ii. {-2,-10,5,4,-1,-9,3}