1.

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,

Answer»

10 and 3
15 and 4
15 AND3
10 and 4

Answer :C


Discussion

No Comment Found

Related InterviewSolutions