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Let x1, x2, ...... ,xn be values taken b...

Let `x_1, x_2, ...... ,x_n` be values taken by a variable `Xa n dy_1, y_2,.......... ,y_n` be the values taken by a variable `Y` such that`y_i=a x_i+b ,i=1,2, ,ndot` Then,

A

`V a r(Y)=a^2V a r(X)`

B

`V a r(X)=a^2V a r(Y)`

C

`V a r(X)=V a r(X)+b`

D

none of these

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The correct Answer is:
A
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