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Let x_1,x_2…..x_(20 )be 20 observations and d_1=2( x_i -5), I = 1,2,……20 . If the mean and variance of d_1,d_2, …….,d_(20)are 20 and 12 respectively, then the mean and variance of x_1,x_2,……,x_(20)are respectively, |
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Answer» 10 and 3 |
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