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23 Jul 2009, 03:04
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If set S consists of an odd number of even integers that have a normal distribution,what is the standard deviation of set S?
1. The mean of set S is 4
2.The median of set S is 4
Ok,so i have a silly querie:(
Each stmt. alone is insuff. and combining the two we know that only a set of consecutive integers will have mean=median.So (c).
However my concept is a bit wobbly.What about set {0,4,8}?
here mean=4=median.this satisfies the condition as the set {2,4,6}.
1. The mean of set S is 4
2.The median of set S is 4
Ok,so i have a silly querie:(
Each stmt. alone is insuff. and combining the two we know that only a set of consecutive integers will have mean=median.So (c).
However my concept is a bit wobbly.What about set {0,4,8}?
here mean=4=median.this satisfies the condition as the set {2,4,6}.
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Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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23 Jul 2009, 04:16
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I posted a reply on BTG, but this question is nonsense. You can't possibly have a finite set of integers which is 'normally distributed'; the normal distribution is infinite and continuous. In any case, you don't need to know a single thing about normal distributions on the GMAT.
23 Jul 2009, 04:23
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Hi tejal777
What is the source of this question?
If such questions regarding normal distribution and deviation are out of scope for GMAT then we should not post them here..else people will spend time and effort working on these concepts which wont fetch them any points.
May be you can write ( "good to know, but not GMAT relevant") alongwith your question if you are interested in a solution.
THanks Ian for clarifying.
What is the source of this question?
If such questions regarding normal distribution and deviation are out of scope for GMAT then we should not post them here..else people will spend time and effort working on these concepts which wont fetch them any points.
May be you can write ( "good to know, but not GMAT relevant") alongwith your question if you are interested in a solution.
THanks Ian for clarifying.
