how do i do this math problem?

Question

Determain the shape of distrabuition of hours worked by drawing a frequency histogram then compute the mean and median ?

0 0 15 20 30
40 30 20 35 35
28 15 20 25 25
30 5 0 30 24
28 30 35 15

Answer 1

Start by creating a frequency histogram... write each number in order and then add one marker for each time it appears.

0 | ***
5 | *
15 | ***
20 | ***
24 | *
25 | **
28 | **
30 | *****
35 | ***
40 | *

The mean is the average, so just add up all the numbers and divide by 24 (since you have 24 numbers).

The median, is the number in the "middle" if you write them in order. In your case you have an even number of hours, so you'll end up with two median values, but fortunately they are both 25.