JEE Main 2020MathematicsStatisticsCalculation Of Standard Deviation Variance And Mean Deviation Of Grouped And Ungrouped DataeasyMCQ

JEE Main 2020Statistics Question with Solution

From: JEE Main 2020 (Online) 6th September Morning Slot

Question

If and
(n, a > 1) then the standard deviation of n
observations x1 , x2 , ..., xn is :

Choose an option

Show full solutionCorrect option: D
Correct answer
D

Step-by-step explanation

S.D =

=

=

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About this question

This is a previous-year question from JEE Main 2020, 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.