Question: (a) Given the sample values x1, x2, . . ., xn, show that (b) Verify the result of part (a) for the data of Exercise

(a) Given the sample values x1, x2, . . ., xn, show that
(Σ) Συ--Σ- i=l - i=1

(b) Verify the result of part (a) for the data of Exercise 1.5.5.
In Exercise 1.5.5

(a) Given the sample values x1, x2, . . .,

() --- i=l - i=1

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