- Below are the number of minutes a sample of 30 people exercise each week.
108, 156, 127, 139, 150, 132, 123, 128, 120, 124, 117, 123, 141, 137, 120
139, 123, 135, 119, 111, 119, 120, 100, 118, 114, 132, 121, 144, 152, 130
- a) Fill in the frequency distribution with
5 classes.
Class
|
freq
|
mdpt
|
relative freq
|
cumulative f
|
100-112
|
|
|
|
|
113-125
|
|
|
|
|
126-139
|
|
|
|
|
139-151
|
|
|
|
|
152-164
|
|
|
|
|
|
|
|
|
|
Make a frequency histogram. Label the axes appropriately.