Question

Find the missing frequencies f, and f, if the mean of 50 observations given below
is 38.2.
Class interval
0 - 10
10 - 20
20 - 30
30-40
40 - 50
50 - 60
60 - 70
Frequency
4
4
f
10
f
8
5
please give answer in a notebook and make table also please ​

Answer 1

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