Question

The following frequency table shows the heights (in inches) of some members of a choir.

Height		Count
60		4
61		4
65		5
70		8
73		4
76		6

What is the mean of these data? (keep 2 decimals) 68.29

What is the variance of these data? (keep 2 decimals)

What is the standard deviation of these data? (keep 2 decimals)

Answer 1