ACCORDING TO THE PROPERTIES OF MATHEMATICAL EXPECTATION E(Ctimes X)= (C=constant) Select one: =C^2times E(X) =Ctimes X =Ctimes E(X) =C =1

Question

ACCORDING TO THE PROPERTIES OF MATHEMATICAL EXPECTATION E(Ctimes X)= (C=constant) Select one: =C^2times E(X) =Ctimes X =Ctimes E(X) =C =1

Answer 1

The correct answer is:

Explanation: The mathematical expectation of a constant times a random variable is equal to the constant times the mathematical expectation of the random variable. In this case,

is a constant and

is a random variable. Therefore,

.

Вопрос

ACCORDING TO THE PROPERTIES OF MATHEMATICAL EXPECTATION E(Ctimes X)= (C=constant) Select one: =C^2times E(X) =Ctimes X =Ctimes E(X) =C =1

Решения

Ответ