The number of hours worked per week for a sample of ten students is shown below.

Student Hours

1 17

2 40

3 6

4 19

5 6

6 24

7 32

8 6

9 8

10 30

1. Determine the mean, median, and mode.
2. Explain which of the three values (mean, median, mode) is the best representation of central tendency.
3. What is the standard deviation for the number of hours worked?What does standard deviation tell us?