Math, asked by chaithanya260, 11 months ago

The mean of the following distribution is 18.Find the frequency 'f' of the class 19-21.
Classes 11-13 13-15 15-173 17-19 19-21
21-23 23-25
Frequency 3 6 9 13 F 5 4

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Answered by angel1234562

4

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