Question

In a frequency distribution, if a = assumed mean = 55,∑ fi = 100, h = 10 and ∑ƒi μi = -30, then find the mean of the distribution *

ans fast please I give 20 point

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Answer 1

Answer:

open ur class 10 Ncert and see the formula for means at last page of chapter and put all the given values in that formula

Answer 2

Answer:

answer is 52

Step-by-step explanation:

mean= afiui/fi×h

55add -30/100×10

ans 52