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If the mean of a set of observations `x_(1),x_(2), …,x_(n)" is " bar(X)`, then the mean of the observations `x_(i) +2i , i=1, 2, ..., n` is

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If the mean of a set of observations `x_(1),x_(2), …,x_(n)" is " bar(X)`, then the mean of the observations `x_(i) +2i , i=1, 2, ..., n` is
A. `bar(X) +2`
B. `bar(X) +2n`
C. `bar(X)+(n+1)`
D. `X+n`
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Correct Answer - C
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