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M16: Q23

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Manager
Manager
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Joined: 10 Jan 2010
Posts: 120

Kudos [?]: 146 [0], given: 33

GPA: 4
WE: Programming (Computer Software)
M16: Q23 [#permalink]

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New post 23 Nov 2011, 19:46
If the mean of set S does not exceed mean of any subset of set S , which of the following must be true about set S ?

I. Set S contains only one element

II. All elements in set S are equal

III. The median of set S equals the mean of set S

none of the three qualities is necessary
II only
III only
II and III only
I, II, and III
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Kudos [?]: 146 [0], given: 33

M16: Q23   [#permalink] 23 Nov 2011, 19:46
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M16: Q23

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