Question
Mathematics Question on Statistics
If X is a random variable with E(X) = 6 and V(X) = 3, then E(X2) is equal to
A
33
B
36
C
39
D
42
E
27
Answer
39
Explanation
Solution
The correct option is (C): 39
If X is a random variable with E(X) = 6 and V(X) = 3, then E(X2) is equal to
33
36
39
42
27
39
The correct option is (C): 39