Q14 of 108 Page 33

If two variates X and Y are connected by the relation , where a, b, c are constants such that ac < o, then

Given,

To Find: Write the expression for the standard deviation of Y.


Explanation: We have


Mean (y) =


We can write as: Mean (y) =


Mean (y) =


Var(X) =


Then, Var(Y) =


Now, Substitute the value of yiand Y, then we get







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