CUET · MATHS · PYQ PAPER 2025
A random variable X has the following probability distribution
| X | 0 | 1 | 2 | 3 | 4 | 5 |
| P(X) | 0.1 | k | 0.2 | 2k | 0.3 | k |
- A 0.1
- B 0.2
- C 0.3
- D 0.4
Answer & Solution
Correct Answer
(D) 0.4
Step-by-step Solution
Detailed explanation
\( \sum P(X) = 1 \) \( 0.1 + k + 0.2 + 2k + 0.3 + k = 1 \) \( 0.6 + 4k = 1 \) \( 4k = 0.4 \) \( k = 0.1 \) \( P(X\( P(X\( P(X<3) = 0.1 + 0.1 + 0.2 = 0.4 \)
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