The mean of observations 10 ,11 ,13, 17 ,X + 5 ,20, 22, 24, 53 is 18 find the value of x
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Answered by
0
Mean=(10+11+13+17+5+X+20+22+24+53)/9=18
ie
175+X/9=18
175+X=162
therefore X=-13
ie
175+X/9=18
175+X=162
therefore X=-13
Answered by
1
10+11+13+17+x+5+20+22+24+53=18
170+x=18
x=18-170
x=-152
170+x=18
x=18-170
x=-152
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