JEE Main 2016 — Statistics Question with Solution
From: JEE Main 2016 (Offline)
Question
If the standard deviation of the numbers 2, 3, a and 11 is 3.5, then which of the following is true?
Choose an option
Show full solutionCorrect option: B
Correct answer
B32 - 32 + 84 = 0
Step-by-step explanation
The formula for standard deviation (S.D)
Where Sum of square of the numbers
Sum of numbers
(given)
Where Sum of square of the numbers
Sum of numbers
(given)
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This is a previous-year question from JEE Main 2016, 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.