GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 19 Dec 2018, 08:07

# TODAY:

MIT Sloan R1 Decisions - Join MIT Chat for Live Updates | Chat with UCLA Anderson Adcom @9am PT | Chat with Yale SOM R1 Admit 10am PT

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### Happy Christmas 20% Sale! Math Revolution All-In-One Products!

December 20, 2018

December 20, 2018

10:00 PM PST

11:00 PM PST

This is the most inexpensive and attractive price in the market. Get the course now!
• ### Key Strategies to Master GMAT SC

December 22, 2018

December 22, 2018

07:00 AM PST

09:00 AM PST

Attend this webinar to learn how to leverage Meaning and Logic to solve the most challenging Sentence Correction Questions.

# [IR] The table summarizes information in serveral categories

Author Message
TAGS:

### Hide Tags

Intern
Joined: 14 Mar 2012
Posts: 26
GMAT 1: 590 Q32 V30
GMAT 2: 700 Q48 V37
GPA: 3.6
[IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

03 Jul 2012, 10:42
3
9
Hi guys,

I don't understand the reasoning by the answer to question 2 is true.

Especially while the age goes from 29,9 to 28.4 even though the number of lanes is smaller.

Isn't this ONE case a positive correlation?

BTW: Source is GMATPrev Software v2.1
Attachments

ir.PNG [ 53.71 KiB | Viewed 16661 times ]

_________________

Give kudos if you find my post helpful

Senior Manager
Affiliations: UWC
Joined: 09 May 2012
Posts: 364
GMAT 1: 620 Q42 V33
GMAT 2: 680 Q44 V38
GPA: 3.43
WE: Engineering (Entertainment and Sports)
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

03 Jul 2012, 20:08
12
6
hi there, first sort the average customer age field. You will notice the trend that as age increases, the number of self check unlimited lanes decreases. Like any set of real world data, don't expect it to be perfect. One or two outlier points can be expected. However, do look at the overall/big picture. For the most part, the number of self check unlimited lanes decreases with increasing age. Also the difference in age from 28.4 to 29.4 is small so the two dots on a scatter plot would be relatively close together without skewing the overall trend.
Intern
Joined: 14 Mar 2012
Posts: 26
GMAT 1: 590 Q32 V30
GMAT 2: 700 Q48 V37
GPA: 3.6
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

03 Jul 2012, 22:42
1
macjas wrote:
hi there, first sort the average customer age field. You will notice the trend that as age increases, the number of self check unlimited lanes decreases. Like any set of real world data, don't expect it to be perfect. One or two outlier points can be expected. However, do look at the overall/big picture. For the most part, the number of self check unlimited lanes decreases with increasing age. Also the difference in age from 28.4 to 29.4 is small so the two dots on a scatter plot would be relatively close together without skewing the overall trend.

Thanks macjas.

So as long as I have only ONE or TWO differences its ok. I will remember that.
_________________

Give kudos if you find my post helpful

Intern
Joined: 21 Nov 2012
Posts: 1
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

16 Jul 2013, 18:53
Could someone please explain how to decide on True/False for the third statement of the question?

Thanks.
Intern
Joined: 19 Jul 2013
Posts: 1
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

14 Sep 2013, 23:02
As for the third statement, sort the table by Self-check express lanes. Look above the average and below the average. There are three stores (I, H, C) below the average. All of them do have restaurants. On the other hand, there are six stores (A, B, D, F, G, E) above the average. Most of them do not have restaurants. It is stated that stores with fewer lanes are less likely to have restaurants than stores with more lanes. But it's quite on the contrary. So, the statement is false.
Manager
Joined: 15 Jan 2014
Posts: 88
Concentration: Healthcare, Strategy
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

31 Mar 2014, 10:11
macjas wrote:
hi there, first sort the average customer age field. You will notice the trend that as age increases, the number of self check unlimited lanes decreases. Like any set of real world data, don't expect it to be perfect. One or two outlier points can be expected. However, do look at the overall/big picture. For the most part, the number of self check unlimited lanes decreases with increasing age. Also the difference in age from 28.4 to 29.4 is small so the two dots on a scatter plot would be relatively close together without skewing the overall trend.

So because it's a "negative correlation" we can make the assumption that is an "overall negative correlation?" Is correlation the key here in making assumptions like this on IR?

Thanks!
Intern
Joined: 05 May 2018
Posts: 4
Location: India
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

14 Jun 2018, 06:15
i am also confused that why answer to statement 2 is marked "true". because there is not uniform negative correlation. there are some exceptions also.

thanks
Intern
Status: GMAT in August 2018
Joined: 05 Mar 2018
Posts: 46
Location: India
WE: Law (Consulting)
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

02 Jul 2018, 07:33
solarzj wrote:
Hi guys,

I don't understand the reasoning by the answer to question 2 is true.

Especially while the age goes from 29,9 to 28.4 even though the number of lanes is smaller.

Isn't this ONE case a positive correlation?

BTW: Source is GMATPrev Software v2.1

Hi, could I please request if someone could guide me on Q2. It asks for a negative co-relation - which is absent in the data.

Then why is the answer true, thanks. Attaching a snapshot for ease.
Attachments

GMAT CLUB.docx [171.01 KiB]

Intern
Joined: 22 Jun 2017
Posts: 16
Location: India
GMAT 1: 670 Q48 V34
GPA: 4
Re: [IR] The table summarizes information in serveral categories  [#permalink]

### Show Tags

11 Aug 2018, 03:32
If you put all these points on graph, except for one value, all other values will look in getting reduced as you progress. So overall (collectively) it shows negative trend, if you put a trend line it will have a negative slope .... so the answer is true. Go by collective pattern
Re: [IR] The table summarizes information in serveral categories &nbs [#permalink] 11 Aug 2018, 03:32
Display posts from previous: Sort by

# [IR] The table summarizes information in serveral categories

Moderators: chetan2u, Bunuel

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.