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X has a set of 9 different numbers Y is a set containing 8 [#permalink]
10 Dec 2005, 19:28

X has a set of 9 different numbers
Y is a set containing 8 different numbers, all of which are members of X.
Which of the following cannot be true?

A. The mean of X is equal to the mean of Y
B. The median of X is equal to the median of Y
C. The range of X is equal to the range of Y
D. The mean of X is greater than the mean of Y
E. The range of X is less that the range of Y