CBSE Class 9 Answered
In a city, the weekly observations made in a study on the cost of living index are given in the following table:
Cost of Living Index
No. of weeks
140 - 150
150 - 160
160 - 170
170 - 180
180 - 190
190 - 200
5
10
20
09
06
02
Total
52
Draw the frequency polygon for the data given above.
Asked by Topperlearning User | 06 Dec, 2013, 09:19: AM
Expert Answer
First we obtain the class marks as given in the following table.
Then, The frequency polygon is as follows
Answered by | 06 Dec, 2013, 11:19: AM
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