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# The table shows the results of a poll which asked drivers how many acc

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Math Expert
Joined: 02 Sep 2009
Posts: 58335
The table shows the results of a poll which asked drivers how many acc  [#permalink]

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16 May 2016, 02:36
1
8
00:00

Difficulty:

45% (medium)

Question Stats:

61% (01:14) correct 39% (01:47) wrong based on 121 sessions

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The table shows the results of a poll which asked drivers how many accidents they had had over the previous 5 years. What is the median number of accidents per year?

A. 0.5
B. 1
C. 1.5
D. 2
E. 4

Attachment:

p006-9.gif [ 1.03 KiB | Viewed 1696 times ]

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Manager
Joined: 12 Jun 2015
Posts: 78
Re: The table shows the results of a poll which asked drivers how many acc  [#permalink]

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16 May 2016, 03:59
Total Number of Drivers : 17 +13 + 21 + 4 + 2 + 2 + 1 = 60
So, the median number of accidents per year should be between the 30th and the 31st driver
The 30th driver had committed 1 accident
The 31st driver had committed 2 accidents

The median = 1+2 /2 = 1.5 accidents per year

Option C
Manager
Joined: 06 Aug 2015
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Concentration: General Management, Entrepreneurship
GMAT Date: 10-30-2016
GRE 1: Q160 V135
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WE: Programming (Consulting)
Re: The table shows the results of a poll which asked drivers how many acc  [#permalink]

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16 May 2016, 04:19
1

Explanation:
If we list the given info in sequence we will be writing as 17 zeros, 13 ones, 21 twos etc.
Since there are 60 drivers (even no.), the median will come between 30th (n/2) driver sec. and 31st (n/2 + 1) driver sec. We can already see that starting at the zero end, the 30th driver will be in the ones section of the list, but the 31st driver will be in the twos section. Hence the median is 1.5.

Hit +1 Kudos if you like the explanation.
Manager
Joined: 18 Aug 2013
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Location: India
Concentration: Operations, Entrepreneurship
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WE: Operations (Transportation)
Re: The table shows the results of a poll which asked drivers how many acc  [#permalink]

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16 May 2016, 19:39
Good one.

You don't have to do any calculations for this one.Just see the no. of drivers who said that they encountered 0,1,2 no. of accidents.Its hunge as compared to all others.Hence,the answer will be less than 2 but more than 1.
And since here the choices are quite easy,the answer is C i.e 1.5.

Hit +1 Kudos if you like the explanation.
Intern
Joined: 11 Apr 2014
Posts: 20
The table shows the results of a poll which asked drivers how many acc  [#permalink]

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01 Jan 2018, 03:54
good one. This is kind of an illusion. Helps to clear the basics
The table shows the results of a poll which asked drivers how many acc   [#permalink] 01 Jan 2018, 03:54
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