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If the mean of observations x1.x2,x3…..x...

If the mean of observations` x_1.x_2,x_3…..x_n is barx` then the mean of `x_1+a,x_2+a,…...x_n+a` will be

A

`barx+a`

B

`2barx+a`

C

`barabarx`

D

`(barx+a)/2`

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