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Doubt with this GMAT PREP IR Question?

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Doubt with this GMAT PREP IR Question? [#permalink] New post 25 Oct 2012, 08:18
Hi Guys,

PFA the GMAT PREP IR Question as a pic file.

Doubt : for the first sub question the no of self check is equal to average (which is 8) . how is it above average (which is 8) ---Please clarify.


Thanks,
harikris
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Concentration: General Management, International Business
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Re: Doubt with this GMAT PREP IR Question? [#permalink] New post 31 Oct 2012, 07:25
My stand on this one is - if you look at the total average for all the stores it's 6.89 and 8 is above the average of self-check express lanes.
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Re: Doubt with this GMAT PREP IR Question? [#permalink] New post 06 Nov 2012, 01:02
the first : false
the second: can not do because we need to sort according to self check unlimited range to see whether there is any corelation.
the third: true
Re: Doubt with this GMAT PREP IR Question?   [#permalink] 06 Nov 2012, 01:02
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