The Human Resources Director at DuPont began a study of the overtime hours in the Inspection Department. A sample of 15 workers was selected at random, and records showed they worked the following number of overtime hours last month:

13	13	12	15	7	15	5	12
6	7	12	10	9	13	12

Compute the arithmetic means.

Q2)

The following are the ages of the 10 people in the video arcade at the shopping mall at 10 a.m.:

11

19

19

9

7

17

12

14

18

10

Determine the median and mode.