CUET · MATHS · PYQ PAPER 2025
Probability distribution of random variable \(X\) is
| X | -2 | -1 | 0 | 1 | 2 |
| P(X) | 2/11 | 1/11 | 4/11 | 3/11 | 1/11 |
- A 0
- B \(\frac{10}{11}\)
- C \(-\frac{10}{11}\)
- D \(\frac{11}{10}\)
Answer & Solution
Correct Answer
(A) 0
Step-by-step Solution
Detailed explanation
\(E(X) = \sum x P(X=x)\) \(E(X) = (-2)\left(\frac{2}{11}\right) + (-1)\left(\frac{1}{11}\right) + (0)\left(\frac{4}{11}\right) + (1)\left(\frac{3}{11}\right) + (2)\left(\frac{1}{11}\right)\) \(E(X) = \frac{-4}{11} - \frac{1}{11} + 0 + \frac{3}{11} + \frac{2}{11}\)…
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