The mean of 'x+y' observations is 'x-y'.Find x and y?
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As we know
Mean=sum of numbers/total numbers
As given
x-y=x+y/1
1 (x-y)=x+y
x-y=x+y
x-x-y-y=0
-2y=0
y=0 also x=0
Mean=sum of numbers/total numbers
As given
x-y=x+y/1
1 (x-y)=x+y
x-y=x+y
x-x-y-y=0
-2y=0
y=0 also x=0
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