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A quality control analyst collected 200 measurements of leng

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A quality control analyst collected 200 measurements of leng [#permalink] New post 24 Feb 2017, 03:02
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A quality control analyst collected 200 measurements of length. The range of the 200 measurements is 17 centimeters, and one of the measurements is 49.5 centimeters. Which of the following could be another one of the 200 measurements, in centimeters?

Indicate all such measurements.

A) 31.0

B) 32.0

C) 33.0

D) 34.0
[Reveal] Spoiler: OA

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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 04 Mar 2017, 06:47
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Explanation

The range of 200 measurements = 17 cms

If 49.5 is the lowest measurement in the set

The highest measurement in the set of measurement = 49.5 + range = 49.5 + 17 = 66.5 cms

If 49.5 is the highest measurement in the set

The lowest measurement in the set of measurement = 49.5 - range = 49.5 - 17 = 32.5 cms.

In the second case we have two values that lie between 32.5 cms and 49.5 cms.

Thus option is C and D is correct.
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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 14 Aug 2018, 15:20
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As the range between the measurement is given as 17, it means the highest and lowest measurement has difference between 17.
As it a could be question, we can take all possible answer into consideration, if the difference between the number is less than 17.
so the answer is C and D. since 49.5- C < 49.5 - D < 17.
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A at Quality Control Analyst Collected 200 Measurements of l [#permalink] New post 05 Apr 2019, 21:59
A at Quality Control Analyst Collected 200 Measurements of length. At The the Range of at The 200 Measurements IS 17 centimeters, and One of at The Measurements IS 49.5 centimeters. Which of at The following could BE Another One of at The 200 Measurements, in centimeters?

Indicate All SUCH Measurements.

A 31.0

B 32.0

C 33.0

D 34.0
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Re: A at Quality Control Analyst Collected 200 Measurements of l [#permalink] New post 05 Apr 2019, 22:45
What's the answer?
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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 06 Apr 2019, 02:18
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Merged similar topic.

Please read the now just released guide how to format a verbal question in one second

https://greprepclub.com/forum/how-to-po ... 12927.html

Moreover, all the powerprep question as explained here, which is an announcement post just for being visible as much as is possible to the students

https://greprepclub.com/forum/gre-power ... -3118.html

here also the pdf version of the same questions by skypetutor

https://greprepclub.com/forum/vince-and ... 12946.html

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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 21 Jul 2019, 20:54
thanks
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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 13 Feb 2020, 15:47
This question infuriates me. Unless I'm mistaken, it is terribly worded. When I read "One of at The Measurements is 49.5 centimeters" I assumed they were talking about any one of the 200 measurements. Why would I presume they were giving me the upper or lower extent of the range?
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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 14 Feb 2020, 01:12
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The question is perfectly worded. This is a question made to test your reasoning about a range.

Of course, you can choose whatever number among the 200. You in the end will solve the question for sure but NOT in one minute, maybe in one hour.

However, the stem gave you the range for one reason. It is the difference between the upper value and the lowest value by definition.

So, if you wanna find the other number inside the range you have to reason in terms of minimum and maximum: the range.

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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 14 Feb 2020, 12:45
Carcass wrote:
The question is perfectly worded. This is a question made to test your reasoning about a range.

Of course, you can choose whatever number among the 200. You in the end will solve the question for sure but NOT in one minute, maybe in one hour.

However, the stem gave you the range for one reason. It is the difference between the upper value and the lowest value by definition.

So, if you wanna find the other number inside the range you have to reason in terms of minimum and maximum: the range.

Regards


My point is that there is no reason I would assume that the 49.5 cm measurement mentioned is either the minimum or the maximum of this set. Therefore, if it is just one of 200 numbers in a data set, it wouldn't tell us anything. If the question had been worded, "49.5 is one of the numbers used to calculate this range" or something to that effect, it would make perfect sense to me. But as it stands, the wording seems misleading. Do you understand what I'm getting at? Thanks for your reply.
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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 07 May 2020, 19:06
prow96 wrote:
This question infuriates me. Unless I'm mistaken, it is terribly worded. When I read "One of at The Measurements is 49.5 centimeters" I assumed they were talking about any one of the 200 measurements. Why would I presume they were giving me the upper or lower extent of the range?


Yeah, I agree with you. A number of times, I had to verbally chastise the GRE test writers in quite a few emails. More than half the time, I successfully persuaded them to change around certain questions. This is why A) I should go to law school, and B) maybe I should take a part-time job working for ETS.
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Re: A quality control analyst collected 200 measurements of leng [#permalink] New post 16 Aug 2020, 06:03
49.5 + 17 and 49.5 - 17
66.5 and 32.5

so any value between 32.5 and 66.5 would be the answer
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Re: A quality control analyst collected 200 measurements of leng   [#permalink] 16 Aug 2020, 06:03
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