Let the observations xi(1≤i≤10) satisfy the equations, 10∑i=1(xi−5)=10 and 10∑i=1(xi−5)2=40. If μ and λ are the mean and the variance of observations, (x1−3),(x2−3),...,(x10−3), then the ordered pair (μ,λ) is equal to :

Let the observations xi(1≤i≤10) satisfy the equations, 10∑i=1(xi

1.	Let the observations xi(1≤i≤10) satisfy the equations, 10∑i=1(xi−5)=10 and 10∑i=1(xi−5)2=40. If μ and λ are the mean and the variance of observations, (x1−3),(x2−3),...,(x10−3), then the ordered pair (μ,λ) is equal to :
Answer» Let the observations $x_{i} (1 \leq i \leq 10)$ satisfy the equations, $10 \sum i = 1 (x_{i} - 5) = 10$ and $10 \sum i = 1 (x_{i} - 5)^{2} = 40$ . If $μ$ and $λ$ are the mean and the variance of observations, $(x_{1} - 3), (x_{2} - 3), . . ., (x_{10} - 3)$ , then the ordered pair $(μ, λ)$ is equal to :