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The table above shows the distribution of test scores for a

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The table above shows the distribution of test scores for a [#permalink] New post 10 May 2010, 09:37
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Question Stats:

83% (01:42) correct 16% (01:08) wrong based on 12 sessions
SCORE INTERVAL----------------NUMBER OF SCORES

50-59-------------------------- 2
60-69--------------------------10
70-79--------------------------16
80-89--------------------------27
90-99--------------------------18

The table above shows the distribution of test scores for a group of management trainees. Which score interval contains the median of the 73 scores?

A. 60-69
B. 70-79
C. 80-89
D. 90-99
E. It cannot be determined from the information given.
[Reveal] Spoiler: OA

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Last edited by Bunuel on 07 Apr 2012, 16:08, edited 1 time in total.
Edited the question and added the OA
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Re: PS7 [#permalink] New post 10 May 2010, 17:46
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The table above shows the distribution of test scores for a group of management trainees. Which score interval contains the median of the 73 scores?

Median of 73 data points is the middle term - 37rd score. First 3 score ranges cover total of 28 scores (2+10+16), 37rd will be in fourth range (it covers scores from 29 to 55).

Answer: C.
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PS question: need help [#permalink] New post 24 Oct 2010, 18:20
need help
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Re: PS7 [#permalink] New post 19 Apr 2011, 19:11
there are 73 scores , which is odd number of scores.

=> median is the middle number 37th term which will be in the 80 -89 range . we have 2+10+16 = 28 in first 3 ranges.

Answer is C.
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Re: PS7 [#permalink] New post 18 May 2011, 03:27
37th person.

80-89
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Re: PS7   [#permalink] 18 May 2011, 03:27
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