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 \sigma is the standard deviation of the data after omitting the two wrong observations from the data, then 38 \sigma^2 is equal to _________. [26-Jul-2022-Shift-2]

JEE Mains 26-July-2022 Shift 2 Solved Paper

Section: Mathematics

Question : 26 of 90

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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 σ is the standard deviation of the data after omitting the two wrong observations from the data, then 38σ2 is equal to _________.

[26-Jul-2022-Shift-2]

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