Question

if the mean of 6, 7, 10, X, 9, 12, 11 is 8 then find the value of X​

Answer 1

Answer:

(6+8+10+x+7) divided by 5 = 8

(6+8+10+x+7) divided by 5 = 8Therefore 31+x = 40 by cross multiplication

(6+8+10+x+7) divided by 5 = 8Therefore 31+x = 40 by cross multiplicationHence on solving, x = 9

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