Q289
If x is a random variable and 'a' and 'b' are constants, then Var (ax + b) is
A.
(a + b) Var (x)
AnswerB.
(a2 + b2) Var (x)
C.
ab Var (x)
D.
a2 Var (x)
Answer: Option A
Solution
Answer: Option A
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