Math, asked by gamingcool161, 9 months ago

The mean of the following distribution is 18. Find the frequency fof the class 19-21.
Class | 11-13 | 13-15 | 15-17 | 17-19 19-21 21-23 23-25
Frequency | 3 6 9 13 f
5 4

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Answered by tanu22844

3

Answer☝☝☝

Missing frequency is 8

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