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If two sets of numbers , P and Q, have the same number of

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If two sets of numbers , P and Q, have the same number of [#permalink] New post 02 Dec 2009, 01:16
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If two sets of numbers , P and Q, have the same number of elements, is the mean of set Q lower than the mean of set P?

a. Set Q consists of consecutive even integers and set P of consecutive odd integers.

b. The median of set Q is higher than the mean of set P.

My answer is E.

Am i correct?
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Re: Mean and median [#permalink] New post 02 Dec 2009, 06:22
For consecutive integers mean=median so Statement 2 is sufficient.

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Re: Mean and median [#permalink] New post 02 Dec 2009, 10:01
Statement 2 does not say anything about consecutive integers.
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Re: Mean and median [#permalink] New post 02 Dec 2009, 11:26
ro86 wrote:
Statement 2 does not say anything about consecutive integers.


You're right. We need Statement 1 too.
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Re: Mean and median [#permalink] New post 05 Dec 2009, 11:44
ro86 wrote:
If two sets of numbers , P and Q, have the same number of elements, is the mean of set Q lower than the mean of set P?

a. Set Q consists of consecutive even integers and set P of consecutive odd integers.
b. The median of set Q is higher than the mean of set P.

My answer is E.

Am i correct?


C. Both statements are required to make sure that median of set Q > median of set P.
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Re: Mean and median   [#permalink] 05 Dec 2009, 11:44
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