JEE Main 2003 — Statistics Question with Solution
JEE Main 2003
Question
In an experiment with 15 observations on , the following results were available: One observation that was 20 was found to be wrong and was replaced by the correct value 30 . The corrected variance is
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
increase in , then
Increase in then
Variance
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This is a previous-year question from JEE Main 2003, 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.