find x if 9,x,14,18x,x,8,10 and 4 have a mean of 11.
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Answered by
46
hope it helps you....
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swati2006:
very nicely explained. thanx
wlcm
Answered by
13
HEY HERE IS YOUR ANSWER !
Mean = sum of it comes / no of outcomes
11 = 9 + x + 18x +x +14 + 8 +10 +4 /8
88 = 45 + 20 x
88 - 45 = 20x
43 = 20 x
x = 43 /20
Mean = sum of it comes / no of outcomes
11 = 9 + x + 18x +x +14 + 8 +10 +4 /8
88 = 45 + 20 x
88 - 45 = 20x
43 = 20 x
x = 43 /20
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