The mean of 5 observations x+3, x+5, x+7, x+9 and x+11 is 14. Find the value of x.
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4
Answer:
MEAN = SUM OF OBSERVATION/NUMBER OF OBSERVATION
==> 14 = (X+3+X+5+X+7+X+9+X+11)/5
==> 14 = (5X+35)/5
==> 14 = 5(X+7)/5
==> 14 = X+7
==> 14-7 = X
==> X =7
daminidiva24945:
Thnx
Answered by
1
X+3+X+5+X+7+X+9+X+11/5=14
5x+35=70
5x=35
X=7
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