JEE Main 2021 — Probability Question with Solution
From: JEE Main 2021 (Online) 25th July Evening Shift
Question
Let X be a random variable such that the probability function of a distribution is given by . Then the mean of the distribution and P(X is positive and even) respectively are :
Choose an option
Show full solutionCorrect option: B
Correct answer
B and
Step-by-step explanation
Mean =
P(X is even)
P(X is even)
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This is a previous-year question from JEE Main 2021, covering the Probability chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.