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 [24 jan 2026 Shift 1]

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

[24 jan 2026 Shift 1]

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