Let $x_1, x_2, \dots, x_n$ be the values taken by a variable $X$ and $y_1, y_2, \dots, y_n$ be the values taken by a variable $Y$ such that $y_i = ax_i + b$,where $i = 1, 2, \dots, n$. Then...
- A$V(Y) = a^2V(X)$
- B$V(Y) = a^2V(X) + b$
- CNone of these
- D$V(Y) = V(X) + b$
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