Last visit was: 07 Apr 2025, 01:54 It is currently 07 Apr 2025, 01:54
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

Close

GRE Prep 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 GRE 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
PREVIOUS TOPIC
NEXT TOPIC

Data set M = {60, 9, 10, 20, 12, 7, 10, 8}

Tags :
Find Similar Topics  About  Add a Tag

Show Tags
Hide Tags

User avatar
D
Carcass
Verbal Expert
Joined: 18 Apr 2015
Posts: 31476
Own Kudos [?]: 37675 [0]
Given Kudos: 26234
Send PM
Data set M = {60, 9, 10, 20, 12, 7, 10, 8} [#permalink] New post   25 Dec 2018, 15:27
Expert Reply
00:00

Question Stats:

80% (00:43) correct 20% (00:33) wrong based on 70 sessions

Hide Show timer Statistics

Data set \(M = {60, 9, 10, 20, 12, 7, 10, 8}\)




Quantity A
Quantity B
The mode of data set M
The mean of data set M


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
ShowHide Answer
Official Answer
B
User avatar
P
GreenlightTestPrep
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12348 [0]
Given Kudos: 136
Send PM

Top Member of the Month
Data set M = {60, 9, 10, 20, 12, 7, 10, 8} [#permalink] New post   09 May 2019, 09:04
2
Carcass wrote:
Data set \(M = {60, 9, 10, 20, 12, 7, 10, 8}\)

Quantity A
Quantity B
The mode of data set M
The mean of data set M



M = {7, 8, 9, 10, 10, 12, 20, 60}

The mode is the most frequently-occurring value(s).
So, mode = 10


Mean \(=\frac{7+8+9+10+10+12+20+60}{8}=\frac{136}{8}=17\)

We get:
QUANTITY A: 10
QUANTITY B: 17

Answer: B

RELATED VIDEO
avatar
AlaminMolla
Manager
Manager
Joined: 22 May 2019
Posts: 58
Own Kudos [?]: 51 [0]
Given Kudos: 0
Send PM
Data set M = {60, 9, 10, 20, 12, 7, 10, 8} [#permalink] New post   27 Jul 2019, 14:47
1
GreenlightTestPrep wrote:
Carcass wrote:
Data set \(M = {60, 9, 10, 20, 12, 7, 10, 8}\)

Quantity A
Quantity B
The mode of data set M
The mean of data set M



Arrange values in ASCENDING ORDER: M = {7, 8, 9, 10, 10, 12, 20, 60}

Since we have an EVEN number of values, the median = the average of the two middlemost values.
So, the median = (10 + 10)/2 = 20/2 = 10

The mode is the most frequently-occurring value(s).
So, mode = 10

We get:
QUANTITY A: 10
QUANTITY B: 10

Answer: C

RELATED VIDEO

quantity B is asking about mean not median! mean is definitely >10. The answer is B.
User avatar
P
GreenlightTestPrep
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12348 [0]
Given Kudos: 136
Send PM

Top Member of the Month
Re: Data set M = {60, 9, 10, 20, 12, 7, 10, 8} [#permalink] New post   28 Jul 2019, 06:13
1
AlaminMolla wrote:
quantity B is asking about mean not median! mean is definitely >10. The answer is B.


Oooops!!!
Thanks for catching that!
I've edited my response accordingly.
Kudos for you!!!!!

Cheers,
Brent
Prep Club for GRE Bot
gmatclubot
Re: Data set M = {60, 9, 10, 20, 12, 7, 10, 8} [#permalink]
28 Jul 2019, 06:13
Moderators:
adewale223
GRE Instructor
108 posts
bronaugust
GRE Forum Moderator
37 posts
BrushMyQuant
Moderator
1131 posts
VibhuAnurag
GRE Instructor
234 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Main navigation

Partners

GRE Resources

www.ets.org/gre | About | Terms and Conditions and Privacy Policy | Prep Club for GRE Rules | Contact