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QOTD#10 The table above shows the frequency distribution of

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GMAT Club Legend
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Joined: 07 Jun 2014
Posts: 4722
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
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Kudos [?]: 1630 [0], given: 390

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Re: QOTD#10 The table above shows the frequency distribution of [#permalink] New post 10 Dec 2016, 09:56
Expert's post
awamy wrote:
i got really confused,
as you mentioned that range = greatest value- least value
so it should be 164-140= 24!!! plz answer me !!



There is some controversies regarding the explanation. Follow the OG solution.
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GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jun 2014
Posts: 4722
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1630 [0], given: 390

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Re: QOTD#10 The table above shows the frequency distribution of [#permalink] New post 11 Dec 2016, 01:15
Expert's post
awamy wrote:
i got really confused,
as you mentioned that range = greatest value- least value
so it should be 164-140= 24!!! plz answer me !!



Please see the posts above.
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Re: QOTD#10 The table above shows the frequency distribution of [#permalink] New post 09 Jul 2017, 13:44
Expert's post
sandy wrote:
Image

The table above shows the frequency distribution of the heights of 80 students. What is the least possible range of the heights of the 80 students?

A. 15
B. 16
C. 20
D. 24
E. 28

Practice Questions
Question: 12
Page: 151


[Reveal] Spoiler: Img
Attachment:
test.jpg


We need only consider the minimum and maximum ranges

6 students in the 140 - 144 cm category: So, it's possible that all 6 measurements are 144, 144, 144, 144, 144, 144
4 students in the 160 - 164 cm category: So, it's possible that all 4 measurements are 160, 160, 160, 160

So, it's possible that all 80 measurements are: {144, 144, 144, 144, 144, 144 , 146, 146, ......, 158, 158, 160, 160, 160, 160}

RANGE = 160 - 144 = 16

Answer: B

Cheers,
Brent
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Brent Hanneson – Creator of greenlighttestprep.com
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Re: QOTD#10 The table above shows the frequency distribution of   [#permalink] 09 Jul 2017, 13:44
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