JEE Main 2004 — Statistics Question with Solution
JEE Main 2004
Question
In a series of observations, half of them equal a and remaining half equal . If the standard deviation of the observations is 2 , then equals
Choose an option
Show full solutionCorrect option: C
Correct answer
C2
Step-by-step explanation
for and for
S.D. Since
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This is a previous-year question from JEE Main 2004, 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.