GATE 2011
March 13, 2025GATE 2011
March 13, 2025GATE 2011
| Question 6 |
If the difference between the expectation of the square of a random variable (E[X2]) and the square of the expectation of the random variable (E[X])2 is denoted by R, then
| R = 0 | |
| R < 0 | |
| R ≥ 0 | |
| R > 0 |
Question 6 Explanation:
We know that difference of E(X2) and E(X))2 is nothing but variance or V(X) which is always greater than or equal to zero.
So the answer will be R≥0.
So the answer will be R≥0.
Correct Answer: C
Question 6 Explanation:
We know that difference of E(X2) and E(X))2 is nothing but variance or V(X) which is always greater than or equal to zero.
So the answer will be R≥0.
So the answer will be R≥0.