For observations xi given sum(i=1)^10 (...

For observations `x_i` given `sum_(i=1)^10 (X_i - 5) = 10` and `sum_(i=1)^10 (X_i - 5)^2 = 40` If mean and variance of observations `(x_1 - 3),(x_2 - 3),(x_3 - 3).........(x_10 - 3)` is `lambda` & `mu` respectively then ordered pair `(lambda, mu)` is

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