Question

If the arithmetric mean of 5,4,x,x,+3,9 and 8is 6, find out value of x

Answer 1

Answer:

mean = sum of observations ÷ total no. of observations

$6= \frac{5 + 4 + x + x + 3 + 9 + 8}{6}$

36 = 2x + 29

36-29 = 2x

7 /2= x

X = 3.5

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