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gmat_enthus
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 Posted: Tue Dec 12, 2006 6:06 am Post subject: Weekly Math Quest - Dec10th, 2006 |
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Q. Is the standard deviation of A=0?
1) The minimum value of the elements in set A is 5
2) The set A has 20 elements
The answer will be posted along with the solution on Sunday, Dec 17th, 2006. Till then you can disucss your solutions here.
reference: Scorechase GMAT forum
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800guy
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| Posted: Tue Dec 12, 2006 11:34 am Post subject: Re: Weekly Math Quest - Dec10th, 2006 |
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| gmat_enthus wrote: | Q. Is the standard deviation of A=0?
1) The minimum value of the elements in set A is 5
2) The set A has 20 elements
The answer will be posted along with the solution on Sunday, Dec 17th, 2006. Till then you can disucss your solutions here.
reference: Scorechase GMAT forum |
this looks like E to me
1) is not sufficient by itself--they could be all 5 or one value of 5 with other values in the set
2) is not sufficient by itself because it says nothing about the values of the elements
together, 1) and 2) are not sufficient because it could imply: 20 elements with all values of 5, or 20 elements with at least one value of 5.
E |
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gmat_enthus
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gmat_enthus
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| Posted: Wed Dec 13, 2006 10:42 am Post subject: Not E :( |
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Guys, the siteadmin on Scorechasejust posted that OA is not E. for this weeks GMAT Math Quest. They are not going to reveal the OA till 10th.
Any other guesses?
Could it be A, since minimum value is 5 means there is one more value which is not 5 so SD cannot be 0?
So A sound good?
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800guy
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| Posted: Wed Dec 13, 2006 6:14 pm Post subject: |
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| i suppose a...i'm confused |
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