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# (GC) What is the value of N? (1) N is a mode of (2) N is

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Manager
Joined: 10 Feb 2011
Posts: 115
Followers: 1

Kudos [?]: 84 [0], given: 10

(GC) What is the value of N? (1) N is a mode of (2) N is [#permalink]  15 Mar 2011, 15:48
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100% (00:00) correct 0% (00:00) wrong based on 1 sessions
10. (GC) What is the value of N?
(1) N is a mode of [3, 0, 1, - 1, 0, 5, 1]
(2) N is neither positive nor negative

P.s: what does "mode" mean?
[Reveal] Spoiler: OA

Last edited by banksy on 16 Mar 2011, 08:03, edited 1 time in total.
Manager
Joined: 05 Jan 2011
Posts: 178
Followers: 3

Kudos [?]: 39 [1] , given: 8

Re: 10. (GC) What is the value of N? (1) N is a mode of [3, 0, [#permalink]  15 Mar 2011, 17:39
1
KUDOS
banksy wrote:
10. (GC) What is the value of N?
(1) N is a mode of [3, 0, 1, - 1, 0, 5, 1]
(2) N is neither positive nor negative

P.s: what does "mode" means?

The value that appears most within a set of numbers.
For example, the mode of the set consisting of the numbers 2, 4, 3, 2, 8, 2 is 2 since the number two appears the most (i.e., three times).

(1) 0 and 1 appears twice in [3, 0, 1, - 1, 0, 5, 1] so it has two modes 0 and 1 .thus insufficient
(2) if no is neither positive nor negative .Its definitely 0. Thus sufficient

OA should be B
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Joined: 16 Nov 2010
Posts: 1680
Location: United States (IN)
Concentration: Strategy, Technology
Followers: 31

Kudos [?]: 348 [1] , given: 36

Re: 10. (GC) What is the value of N? (1) N is a mode of [3, 0, [#permalink]  15 Mar 2011, 19:09
1
KUDOS
Mode of a set is the number that appears most frequently.

From (1), N = 1 or 0, so not sufficient.

From (2), N = 0, so sufficient as 0 is niether -ve nor +ve.

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Re: 10. (GC) What is the value of N? (1) N is a mode of [3, 0,   [#permalink] 15 Mar 2011, 19:09
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