# (i) Let {x i : i = l, 2, . . . , n} be a set of n data points with x i > 0 for all i. Is it always true that (ii) Is the equality in part (i) always true if x i = c for all i, where c > 0? 1 -? i=1 i=1'

Chapter 19, Problems #13

(i) Let {x_{i}: i = l, 2, . . . , n} be a set of n data points with x_{i} > 0 for all i. Is it always true that

(ii) Is the equality in part (i) always true if x_{i} = c for all i, where c > 0?

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