Q. 25 4.5( 2 Votes )

Find the missing frequency (p) for the following distribution whose mean is 7.68.


Answer :

To Find: Missing frequency(p)

Concept Used:


Explanation:



Given, mean = 7.68




9p + 303 = 7.68p + 314.88


9P – 7.68P = 314.88 – 303


1.32P = 11.88



p = 9


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