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# X has a set of 9 different numbers Y is a set containing 8

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Senior Manager
Joined: 11 May 2004
Posts: 454
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X has a set of 9 different numbers Y is a set containing 8 [#permalink]

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10 Dec 2005, 20:28
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

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

What is your thought process for this question?
Director
Joined: 21 Aug 2005
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10 Dec 2005, 20:40
E

Since Y is a subset of X, it's range cannot be more than that of X.
10 Dec 2005, 20:40
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# X has a set of 9 different numbers Y is a set containing 8

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