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# PS-2

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Current Student
Joined: 28 Dec 2004
Posts: 3391
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 181 [0], given: 2

PS-2 [#permalink]  22 Oct 2005, 19:28
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0% (00:00) correct 0% (00:00) wrong based on 0 sessions
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Director
Joined: 21 Aug 2005
Posts: 793
Followers: 2

Kudos [?]: 9 [0], given: 0

[#permalink]  22 Oct 2005, 19:32
It should be any of these -> 5, -10, 2.5
5 is not in the list. So we have 2 numbers that are in the list.
Probability = 2/12 = 1/6
Current Student
Joined: 28 Dec 2004
Posts: 3391
Location: New York City
Schools: Wharton'11 HBS'12
Followers: 13

Kudos [?]: 181 [0], given: 2

[#permalink]  22 Oct 2005, 19:43

I just solved half the problems I got wrong...

as they say the exam is 90% mind set....
VP
Joined: 13 Jun 2004
Posts: 1122
Location: London, UK
Schools: Tuck'08
Followers: 7

Kudos [?]: 31 [0], given: 0

[#permalink]  22 Oct 2005, 20:20
yep same as Gsr

solution are 5, -10 and 5/2

5 is not in the set, however -10 and 5/2 are

there 12 numbers in the set so you have 2/12 = 1/6 chances to get them
[#permalink] 22 Oct 2005, 20:20
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# PS-2

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