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JEE Main 28 June 2022 Shift 1 Solved Paper

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Question : 23

Total: 90

The mean and standard deviation of 15 observations are found to be 8 and 3 respectively. On rechecking it was found that, in the observations, 20 was misread as 5 . Then, the correct variance is equal to____

[28-Jun-2022-Shift-1]

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