JEE Main 2023MathematicsProbabilityProbability Distribution Of A Random VariablemediumMCQ

JEE Main 2023Probability Question with Solution

From: JEE Main 2023 (Online) 8th April Evening Shift

Question

If the probability that the random variable takes values is given by , where is a constant, then is equal to :

Choose an option

Show full solutionCorrect option: C
Correct answer
C

Step-by-step explanation

As, we know that sum of all the probabilities





On subtracting, we get



Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Probability chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2023, 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.