JEE Main 26 June 2022 Shift 2 Solved Paper
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Question : 17 of 90
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The mean and standard deviation of 50 observations are 15 and 2 respectively. It was found that one incorrect observation was taken such that the sum of correct and incorrect observations is 70 . If the correct mean is 16 , then the correct variance is equal to :
[26-Jun-2022-Shift-2]
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