Frequency polygons
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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: