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B
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Difficulty:
25%
(medium)
Question Stats:
61% (00:33) correct
39%
(00:33)
wrong
based on 145
sessions
History
Date
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Not Attempted Yet
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
(1) N is a mode of [3, 0, 1, - 1, 0, 5, 1]
(2) N is neither positive nor negative
15 Mar 2011, 18:39
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banksy
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
15 Mar 2011, 20:09
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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.
Hence the answer is B.
From (1), N = 1 or 0, so not sufficient.
From (2), N = 0, so sufficient as 0 is niether -ve nor +ve.
Hence the answer is B.
