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# The number of defects in the first five cars to come through

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Manager
Joined: 23 Mar 2008
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The number of defects in the first five cars to come through [#permalink]  17 May 2008, 01:46
The number of defects in the first five cars to come through a new production line are 9,7,10,4, and 6 respectively. If the sixth car through the production line has either 3,7, or 12 defects, for which of these values does the mean number of defects per car for the first six cars equal the median?

I. 3
II. 7
III. 12

A) I only
B) II only
C) III only
D) I and III only
E) I,II and III
Intern
Joined: 15 Apr 2008
Posts: 16
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Re: defects [#permalink]  17 May 2008, 03:36
Answer is D .

With the choice = 3
median=mean=6.5

With the choice=7
median=7
mean = 7.xxx

With the choice=12
mean=median=8
Re: defects   [#permalink] 17 May 2008, 03:36
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# The number of defects in the first five cars to come through

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