jee_main_2026_28_january_evening - Probability Topics

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QUESTION #4 Random Variables and Expectation
The probability distribution of a random variable X is given below :
X4k(30)/(7)k(32)/(7)k(34)/(7)k(36)/(7)k(38)/(7)k(40)/(7)k6k
P(X)(2)/(15)(1)/(15)(2)/(15)(1)/(5)(1)/(15)(2)/(15)(1)/(5)(1)/(15)
If E(X) = (263)/(15), then P(X < 20) is equal to:
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