machiavelli wrote:
If M is a negative integer and K is a positive integer, which of the following could be the standard deviation of
a set {-7, -5, -3, M, 0, 1, 3, K, 7}?
I. -1.5 II. -2 III. 0
(A) I only (B) II only (C) III only (D) I and III only (E) None
Discussed here: https://gmatclub.com/forum/if-m-is-a-ne ... 26819.html
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