CUET and UG exam CUET UG 2025 Mock Test Series Mathematics Probability Mean and Variance of Random variables
A random variable X has the following probability distribution:
| X | 0 | 1 | 2 | otherwise |
| P(X) | k | 2k | 3k | 0 |
Then:
(A) \(\mathrm{k}=\frac{1}{6}\)
(B) \(P(X<2)=\frac{1}{2}\)
(C) \(\mathrm{E}(\mathrm{X})=\frac{3}{4}\)
(D) \(P(1
Choose the correct answer from the options given below:
1
(A) and (B) only
2
(A), (B) and (C) only
3
(A), (B), (C) and (D)
4
(B), (C) and (D) only