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Could someone help me with this GMAPPrep median problem

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Could someone help me with this GMAPPrep median problem [#permalink] New post 22 Jul 2011, 08:46
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

93% (01:31) correct 7% (00:00) wrong based on 14 sessions
Thanks.
[Reveal] Spoiler: OA

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Last edited by smodak on 22 Jul 2011, 09:10, edited 1 time in total.
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 22 Jul 2011, 08:48
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 22 Jul 2011, 09:13
386390 wrote:
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I reattached. I actually solved the problem. I was arranging the numbers as -1, -2, -5, 5, 10, 15 and calculating the median as 0 - too much anxiety I guess :lol:
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 22 Jul 2011, 16:22
Answer is 2 ... you got your order wrong. Anxiety :)
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 24 Jul 2011, 07:42
-5,-2 -1,5,10 ,15. 5+(-1)/2=4/2=2.
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 06 Aug 2011, 12:56
Answer is 5. The question asks for median, not mean.
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 11 Aug 2011, 02:30
bschool2014 wrote:
Answer is 5. The question asks for median, not mean.


Answer is C. = 2 degrees

1) Order the numbers as you would in a timeline, least to greatest
2) Choose the number in the middle which is your median

-5, -2, -1, 5, 10, 15

since you have an even amount of numbers you are going to have 2 middle numbers: -1 and 5. This is where you take their average. -1 + 5 = 4/2 = 2

2 is your median.
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 21 Aug 2011, 13:36
ordered temperatures are

-5 -2 -1 5 10 15

median of a ordered set with even number of elements = sum of middle two terms/2 = (-1+5)/2 = 2
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Re: Could someone help me with this GMAPPrep median problem [#permalink] New post 23 Aug 2011, 14:53
-5 -2 -1 5 10 15
Median = -1,5 5-1=4/2=2
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Re: Could someone help me with this GMAPPrep median problem   [#permalink] 23 Aug 2011, 14:53
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