JEE Main 2023 — Statistics Question with Solution
From: JEE Main 2023 (Online) 8th April Morning Shift
Question
Let the mean and variance of 8 numbers be and respectively. If , then is equal to _____________.
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Show full solutionCorrect answer: 25
Correct answer
25
Step-by-step explanation
Now, mean
Also, variance
Concept :
(a) Mean
(b) Variance
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This is a previous-year question from JEE Main 2023, 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.