SOLUTION: Prove that Var(aX)=a2 Var(X)

SOLUTION: Prove that Var(aX)=a2 Var(X)

Algebra.Com

RELATED QUESTIONS
Var (X-Y) = Var (X) + Var (Y) (answered by Glaviolette)

please help me in this if x has the variance sigma^2 , then var[ax+b]=a^2 var(X)=a^2... (answered by stanbon)

. Independent random variables X and Y are such that E X( ) 4  , E Y( ) 5  ,... (answered by CPhill)

Var(4x+3) (answered by robertb)

Var(4x+3) (answered by fractalier)

Can you please help me solve this question and explain how to solve it shortly? y=3x-5... (answered by Alan3354,Caner1994)

You are told that E(X)=8 and var(X)=4. What are the expected values and variances of the... (answered by stanbon,robertb)

25.If the variance of a random variable X is given Var(X)=3. Then Var(2X) is 30.The... (answered by stanbon)

The random variable X has a probability distribution x. 1 2 3 4 5... (answered by yurtman)