Q. 55.0( 1 Vote )

If the mean of the following frequency distribution is 8, find the value of p.

Answer :

Let’s draw the table and calculate the relative value of variables ∑xi×fi



By putting the formula of mean we get;


Mean = (given)


So we have,



303 + 9P = 8 (41 + P)


303 + 9P = 328 + 8P


9P-8P = 328-303


P = 25


Hence the value of the P is 25.


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