The mean and variance of a data of 10... | Statistics

JEE MAIN 2026

24-01-2026 S1

Question

The mean and variance of a data of 10 observations are 10 and 2 , respectively. If an observations $\alpha$ in this data is replaced by $\beta$, then the mean and variance become 10.1 and 1.99 , respectively. Then $\alpha+\beta$ equals

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Question Tags

JEE Main

Mathematics

Medium

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