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constuct a frequency polygon for given data: Class interval frequency 0-4 5 5-9 8 10-14 12 15-19 9 20-24 4

constuct a frequency polygon for given data:
Class interval          frequency
0-4                          5
5-9                          8
10-14                      12
15-19                      9
20-24                      4

Grade:9

1 Answers

Harsh Patodia IIT Roorkee
askIITians Faculty 907 Points
9 years ago
First make the above data as continuos one

Class interval frequency
-0.5-4.5 5
4.5-9.5 8
9.5-14.5 12
14.5-19.5 9
19.5-24.5 4

For each find the class marks i.e mean of lower and upper limit
It will be as follows
2.
7
12.
17
22

Plot line graph using class marks and corresponding frequency to get frequency polygon

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