Statistical graphs

Instructions:

Read the following exercise, applying what was discussed in class, construct a cumulative frequency polygon. In less than what amount is the profit obtained by 75% of the vehicles? In less than what amount is the profit that was obtained by sixty vehicles?

Gain Frequency

200-600

8

600-1000

11

1000-1400

23

1400-1800

38

1800-2220

45

2200-2600

32

2600-3000

19

3000-3400

4

Total 180