JEE Main 2022 — Statistics Question with Solution
From: JEE Main 2022 (Online) 26th July Evening Shift
Question
The mean and standard deviation of 40 observations are 30 and 5 respectively. It was noticed that two of these observations 12 and 10 were wrongly recorded. If is the standard deviation of the data after omitting the two wrong observations from the data, then is equal to ___________.
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Show full solutionCorrect answer: 238
Step-by-step explanation
After omitting two wrong observations
Now
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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.