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

 It is currently 16 Jan 2019, 19:01

### 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 January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
• ### The winning strategy for a high GRE score

January 17, 2019

January 17, 2019

08:00 AM PST

09:00 AM PST

Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL.
• ### Free GMAT Strategy Webinar

January 19, 2019

January 19, 2019

07:00 AM PST

09:00 AM PST

Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

# M24-26

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 52161

### Show Tags

16 Sep 2014, 00:22
00:00

Difficulty:

15% (low)

Question Stats:

66% (00:26) correct 34% (00:37) wrong based on 100 sessions

### HideShow timer Statistics

20 throws of a die produces following results:

What is the median score of this series of throws?

A. 2.50
B. 3.00
C. 3.35
D. 3.50
E. 4.00

_________________
Math Expert
Joined: 02 Sep 2009
Posts: 52161

### Show Tags

16 Sep 2014, 00:22
Official Solution:

20 throws of a die produces following results:

What is the median score of this series of throws?

A. 2.50
B. 3.00
C. 3.35
D. 3.50
E. 4.00

The median of a set with even number of terms is the average of two middle terms when arranged in ascending/descending order. So, the median of our set of 20 terms is the average of 10th and 11th terms when arranged in ascending/descending order:

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

So, the median is $$\frac{3+3}{2}=3$$.

_________________
Director
Joined: 02 Oct 2017
Posts: 735

### Show Tags

11 May 2018, 04:43
if we calculate number of occurences =4+3+5+2+2+4=20
So for even number of values median =sum of middle values /2

MIddle values here =10th term and 11th term

While calculating median we need to sort values in ascending order
so 4 values of Score 1
3 values of Score 2

5 values of Score 3

10th and 11th term values score are 3

So median =(3+3)/2=3
_________________

Give kudos if you like the post

Manager
Joined: 03 Apr 2015
Posts: 187

### Show Tags

11 May 2018, 07:27
total numbers in the set =20 (20 throws given )
median of 20 numbers = mean of 10th and 11th term

now looking at the table
1 occurs 4 times
2 occurs 3 times
3 occurs 5 times
------------------
12 numbers of set covered we need 10 and 11 so 3 is 10th and 11th term

mean =(3+3)/2 = 3

Senior Manager
Joined: 08 Jun 2015
Posts: 432
Location: India
GMAT 1: 640 Q48 V29
GMAT 2: 700 Q48 V38
GPA: 3.33

### Show Tags

11 May 2018, 21:02
+1 for option B. Write down the numbers and the mean comes out to 3.
_________________

" The few , the fearless "

Re: M24-26 &nbs [#permalink] 11 May 2018, 21:02
Display posts from previous: Sort by

# M24-26

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®.