Question

11. The mean of the following frequency is 8. Find the value of
X{variable) 3 5 7 9 1 13
F(frequency) 6 8 15 p 8 4
(Ans p= 25)

Answer 1

Answer:

Given mean = 8

8 = (303+9p)/(41+p)

(303+9p) = 328+8p

9p-8p = 328-303

p = 25 (Ans.)

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