1.

If the mean of observation x1, x2, ...., xn is x, then the mean of x1 + a, x2 + a, ....., xn + a is(a) ax(b) x-a(c) x+a(d) xa

Answer» If the mean of observation x1, x2, ...., xn is x, then the mean of x1 + a, x2 + a, ....., xn + a is



(a) ax

(b) x-a

(c) x+a

(d) xa


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