Use the following data (first exam scores) from Susan Dean's spring pre-calculus class: You may use Excel.

33; 42; 49; 49; 53; 55; 55; 61; 63; 67; 68; 68; 69; 69; 72; 73; 74; 78; 80; 83; 88; 88; 88; 90; 92; 94; 94; 94; 94; 96; 100

Calculate the following(to one decimal place):

1) The sample mean.

A. 17.9

B. 73

C. 61

D. 90

E. 73.5

F. 29

2) The sample standard deviation

A. 17.9

B. 73

C. 61

D. 90

E. 73.5

F. 29

3) The median

A. 17.9

B. 73

C. 61

D. 90

E. 73.5

F. 29