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If sets X and Y have an equal number of elements, does set X

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If sets X and Y have an equal number of elements, does set X

by anilsingh » Mon May 05, 2014 1:35 am
If sets X and Y have an equal number of elements, does set X have a greater standard deviation than set Y?
(1) The difference between each pair of the neighboring elements is consistent throughout each set;
(2) Each of the first two elements in Set Y is twice greater than the corresponding first and second elements
in Set X.
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by theCodeToGMAT » Mon May 05, 2014 4:15 am
What is the source?

The way I interpret statement 2 is that:
X = 2, 5
Y = 6, 15

Can someone comment on my understanding..
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