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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]

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22 Jul 2011, 09:46
00:00

Difficulty:

15% (low)

Question Stats:

83% (01:29) correct 17% (00:08) wrong based on 30 sessions

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Thanks.
[Reveal] Spoiler: OA

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Last edited by smodak on 22 Jul 2011, 10:10, edited 1 time in total.
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Re: Could someone help me with this GMAPPrep median problem [#permalink]

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22 Jul 2011, 09:48
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Re: Could someone help me with this GMAPPrep median problem [#permalink]

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22 Jul 2011, 10:13
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
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Re: Could someone help me with this GMAPPrep median problem [#permalink]

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22 Jul 2011, 17:22
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Re: Could someone help me with this GMAPPrep median problem [#permalink]

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24 Jul 2011, 08:42
-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]

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06 Aug 2011, 13:56
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Re: Could someone help me with this GMAPPrep median problem [#permalink]

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11 Aug 2011, 03:30
bschool2014 wrote:

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

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Re: Could someone help me with this GMAPPrep median problem [#permalink]

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21 Aug 2011, 14:36
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]

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23 Aug 2011, 15:53
-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, 15:53
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