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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
The standard deviation
[#permalink]
01 Nov 2021, 06:35
01 Nov 2021, 06:35
Expert Reply
1
Bookmarks
00:00
Question Stats:
87% (00:36) correct
12% (00:37) wrong based on 32 sessions
Hide Show timer Statistics
Attachment:
GRE the SD.jpg [ 35.5 KiB | Viewed 2179 times ]
Quantity A |
Quantity B |
The SD of distribution X |
The SD distribution of Y |
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.
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
The standard deviation
[#permalink]
01 Nov 2021, 06:53
01 Nov 2021, 06:53
1
Carcass wrote:
Attachment:
GRE the SD.jpg
Quantity A |
Quantity B |
The SD of distribution X |
The SD distribution of Y |
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.
Since both distributions are symmetrical, we can see that the mean of distribution X = the mean of distribution Y = 50.
Since the values in distribution X are closer to the mean than the values in distribution Y are, we can conclude that the standard deviation of distribution X is LESS THAN the standard deviation of distribution Y.
Answer: B
gmatclubot
The standard deviation [#permalink]
01 Nov 2021, 06:53
Moderators:
