JEE Main 2022MathematicsStatisticsCalculation Of Standard Deviation Variance And Mean Deviation Of Grouped And Ungrouped DatamediumMCQ

JEE Main 2022 — Statistics Question with Solution

From: JEE Main 2022 (Online) 27th June Evening Shift

Question

The mean and variance of the data 4, 5, 6, 6, 7, 8, x, y, where x < y, are 6 and respectively. Then is equal to :

Choose an option

Show full solutionCorrect option: B
Correct answer
B320

Step-by-step explanation

Mean

..... (i)

And variance

..... (ii)

From (i) and (ii)

x = 4 and y = 8

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About this question

This is a previous-year question from JEE Main 2022, 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.