# Frequency polygons

## Everything You Need in One PlaceHomework problems? Exam preparation? Trying to grasp a concept or just brushing up the basics? Our extensive help & practice library have got you covered. | ## Learn and Practice With EaseOur proven video lessons ease you through problems quickly, and you get tonnes of friendly practice on questions that trip students up on tests and finals. | ## Instant and Unlimited HelpOur personalized learning platform enables you to instantly find the exact walkthrough to your specific type of question. Activate unlimited help now! |

#### Make math click 🤔 and get better grades! 💯Join for Free

##### Intros

##### Examples

###### Lessons

**Constructing a Frequency Polygon from a Frequency Distribution**

The following frequency table shows the amount of time it took 45 ski racers to complete a ski course:

Lower Limit:

Upper Limit:

Frequency:

Cumulative Frequency:

80 seconds

86 seconds

3

3

86 seconds

92 seconds

5

8

92 seconds

98 seconds

12

20

98 seconds

104 seconds

8

28

104 seconds

110 seconds

16

34

110 seconds

116 seconds

11

45

**Interpreting a Frequency Polygon**

The frequency polygon below shows the wind speed during a particular day in San Francisco Bay: