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]

Statistics Part 2

Section: Mathematics

Question : 3 of 41

Marks: +1, -0

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]

Validate

Go to Question:

Prev Question

Next Question