Last visit was: 25 Apr 2026, 17:23 It is currently 25 Apr 2026, 17:23
Home
Messages
Tests
Schools
Events
Close
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
Your Progress

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
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 25 Apr 2026
Posts: 109,830
Own Kudos:
811,282
 [6]
Given Kudos: 105,886
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,830
Kudos: 811,282
 [6]
What is the median value rolled by the white die? (Note: Die is the 24 Jul 2015, 00:39
Kudos
Add Kudos
6
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

15% (low)

Question Stats:

79% (00:55) correct 21% (01:05) wrong based on 151 sessions

History

Date
Time
Result
Not Attempted Yet

What is the median value rolled by the white die? (Note: Die is the singular of dice.)

(A) 2.5
(B) 3.0
(C) 3.5
(D) 4.0
(E) 4.5


Kudos for a correct solution.


Show Spoiler
Attachment:
ch7.sec11.bar2.gif
ch7.sec11.bar2.gif [ 2.57 KiB | Viewed 3939 times ]
ShowHide Answer
Official Answer
B
User avatar
ENGRTOMBA2018
User avatar
Joined: 20 Mar 2014
Last visit: 01 Dec 2021
Posts: 2,319
Own Kudos:
3,890
 [2]
Given Kudos: 816
Concentration: Finance, Strategy
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
GPA: 3.7
WE:Engineering (Aerospace and Defense)
Products:
My Reviews
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
Posts: 2,319
Kudos: 3,890
 [2]
What is the median value rolled by the white die? (Note: Die is the 24 Jul 2015, 03:21
1
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
Bunuel

What is the median value rolled by the white die? (Note: Die is the singular of dice.)

(A) 2.5
(B) 3.0
(C) 3.5
(D) 4.0
(E) 4.5


Kudos for a correct solution.


Show Spoiler
Attachment:
ch7.sec11.bar2.gif
Show more


Based the graph the following are the sequences:

Number 1 is rolled 3 times, number 2 is rolled 4 times,umber 3 is rolled 4 times, number 4 is rolled 3 times, number 5 is rolled 3 times and number 6 is rolled 3 times for a total of 20 numbers.

or in other words: 1,1,1,2,2,2,2,3,3,3,3,4,4,4,5,5,5,6,6,6

Thus the median = \(\frac{T_{10}+T_{11}}{2}\) = \(\frac{3+3}{2} = 3\). B is the correct answer.
User avatar
reto
User avatar
Retired Moderator
Joined: 29 Apr 2015
Last visit: 24 Aug 2018
Posts: 716
Own Kudos:
4,304
Given Kudos: 302
Location: Switzerland
Concentration: Economics, Finance
Schools: LBS MIF '19
WE:Asset Management (Finance: Investment Banking)
Schools: LBS MIF '19
Posts: 716
Kudos: 4,304
What is the median value rolled by the white die? (Note: Die is the 24 Jul 2015, 05:23
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel

What is the median value rolled by the white die? (Note: Die is the singular of dice.)

(A) 2.5
(B) 3.0
(C) 3.5
(D) 4.0
(E) 4.5


Kudos for a correct solution.

Show Spoiler
Attachment:
ch7.sec11.bar2.gif
Show more

Since the question asks for the median, you can ignore the frequency. Median = (3+4) / 2 = 3.5

Answer C

>> got it, wrong answer ... :evil:

Correct would be 3
User avatar
ENGRTOMBA2018
User avatar
Joined: 20 Mar 2014
Last visit: 01 Dec 2021
Posts: 2,319
Own Kudos:
3,890
Given Kudos: 816
Concentration: Finance, Strategy
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
GPA: 3.7
WE:Engineering (Aerospace and Defense)
Products:
My Reviews
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
Posts: 2,319
Kudos: 3,890
What is the median value rolled by the white die? (Note: Die is the 24 Jul 2015, 05:27
Kudos
Add Kudos
Bookmarks
Bookmark this Post
reto
Bunuel

What is the median value rolled by the white die? (Note: Die is the singular of dice.)

(A) 2.5
(B) 3.0
(C) 3.5
(D) 4.0
(E) 4.5


Kudos for a correct solution.

Show Spoiler
Attachment:
ch7.sec11.bar2.gif

Since the question asks for the median, you can ignore the frequency. Median = (3+4) / 2 = 3.5

Answer C
Show more

reto, why will you ignore the frequency? Frequency will determine what value will you get for the 10th and the 11th terms.

As mentioned in my post above, the distribution becomes:

Number 1 is rolled 3 times, number 2 is rolled 4 times,umber 3 is rolled 4 times, number 4 is rolled 3 times, number 5 is rolled 3 times and number 6 is rolled 3 times for a total of 20 numbers.

or in other words: 1,1,1,2,2,2,2,3,3,3,3,4,4,4,5,5,5,6,6,6

Median will be the average of the 2 terms mentioned in red.
User avatar
TimeTraveller
User avatar
Joined: 28 Jun 2015
Last visit: 29 Jul 2017
Posts: 237
Own Kudos:
361
Given Kudos: 47
Concentration: Finance
GPA: 3.5
Posts: 237
Kudos: 361
What is the median value rolled by the white die? (Note: Die is the 24 Jul 2015, 05:48
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The values rolled by the white die are (3,4,4,3,3,3). Hence, the median of (3,3,3,3,4,4) would be (3+3)/2 = 3. Ans (B).
User avatar
ENGRTOMBA2018
User avatar
Joined: 20 Mar 2014
Last visit: 01 Dec 2021
Posts: 2,319
Own Kudos:
3,890
 [1]
Given Kudos: 816
Concentration: Finance, Strategy
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
GPA: 3.7
WE:Engineering (Aerospace and Defense)
Products:
My Reviews
Schools: Kellogg '18 (M)
GMAT 1: 750 Q49 V44
Posts: 2,319
Kudos: 3,890
 [1]
What is the median value rolled by the white die? (Note: Die is the 24 Jul 2015, 05:52
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
FireStorm
The values rolled by the white die are (3,4,4,3,3,3). Hence, the median of (3,3,3,3,4,4) would be (3+3)/2 = 3. Ans (B).
Show more

What you are quoting are not the values rolled but the frequencies.

Values rolled are from 1-6 while frequencies for white die are 3 or 4 for the above values. The question is asking about the median VALUE and not frequency!
User avatar
JJo
User avatar
Joined: 08 Jul 2012
Last visit: 24 Oct 2016
Posts: 42
Own Kudos:
103
 [1]
Given Kudos: 15
Posts: 42
Kudos: 103
 [1]
What is the median value rolled by the white die? (Note: Die is the 24 Jul 2015, 12:36
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel

What is the median value rolled by the white die? (Note: Die is the singular of dice.)

(A) 2.5
(B) 3.0
(C) 3.5
(D) 4.0
(E) 4.5


Kudos for a correct solution.


Show Spoiler
Attachment:
ch7.sec11.bar2.gif
Show more


from graph: white dice gets
number 1, 3 times
number 2, 4 times
number 3, 4 times
number 4, 3 times
number 5, 3 times
number 6, 3 times

total we have 20 times, hence median will be avg. of number on 10th and 11th time
Aces. order: 1,1,1,2,2,2,2,3,3,3,3,4,4,4,5,5,5,6,6,6

hence, median = 3

Ans. (B) 3.0
User avatar
Bunuel
User avatar
Math Expert
Joined: 02 Sep 2009
Last visit: 25 Apr 2026
Posts: 109,830
Own Kudos:
811,282
Given Kudos: 105,886
Products:
GMAT Club Tests Forum Quiz
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
Posts: 109,830
Kudos: 811,282
What is the median value rolled by the white die? (Note: Die is the 26 Jul 2015, 12:21
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Bunuel

What is the median value rolled by the white die? (Note: Die is the singular of dice.)

(A) 2.5
(B) 3.0
(C) 3.5
(D) 4.0
(E) 4.5


Kudos for a correct solution.


Show Spoiler
Attachment:
ch7.sec11.bar2.gif
Show more

800score Official Solution:

Look at just the white bars. Since there were 20 rolls, an even number, the median will be the sum of the 2 middle values divided by 2.

1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6

Since the two values are the same, the median is 3.

The correct answer choice is (B).
User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 38,986
Own Kudos:
1,118
Posts: 38,986
Kudos: 1,118
What is the median value rolled by the white die? (Note: Die is the 24 Mar 2021, 20:42
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club BumpBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderators:
Bunuel
Math Expert
109830 posts
Krunaal
Tuck School Moderator
852 posts