JEE Main 2024 — Statistics Question with Solution
From: JEE Main 2024 (Online) 1st February Evening Shift
Question
Consider 10 observations such that and , where are positive integers. Let the mean and the variance of the observations be and respectively. Then is equal to :
Choose an option
Show full solutionCorrect option: A
Correct answer
A2
Step-by-step explanation
We have given mean
Variance
Take
Variance
Take
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This is a previous-year question from JEE Main 2024, covering the Statistics 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.