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Source: — Data Sufficiency |
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by anshumishra » Sat Jan 22, 2011 4:47 pm
GHong14 wrote:Image
Mean = ?
Evenly spaced set => (mean of the set = median of the set)

Statement 1:

we can't predict the mean based on this . --- INSUFFICIENT

Statement 2:
With this we only know that the middle element is 33. --- INSUFFICIENT

Combined 1 and 2 :

Evenly spaced set => (mean of the set = median of the set) = 33 --- Sufficient

Hence, C
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Anshu

(Every mistake is a lesson learned )
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