Question

Calculate the mean and the standard deviation of the sample data below.

Class

Frequency

10−16

1

17−23

3

24−30

11

31−37

15

38−44

5

45−51

2

Round the answers to two decimal places.

Answer 1

The mean is the addition of all the numbers divided by the number of numbers.
Do you know the formula for finding the standard deviation?

Answer 2

yeah I got the answer to this on my own...thanks