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.
Which of the following statements must be true about the dat
[#permalink]
30 Jul 2018, 09:16
30 Jul 2018, 09:16
Expert Reply
1
Bookmarks
00:00
Question Stats:
71% (00:37) correct
28% (00:33) wrong based on 70 sessions
Hide Show timer Statistics
Attachment:
Capture.PNG [ 6.78 KiB | Viewed 9580 times ]
Which of the following statements must be true about the data described by the box-and-whisker plot above?
Indicate all such statements.
A. The median of the whole set is closer to the median of the lower half of the data than it is to the median of the upper half of the data.
B. The data is normally distributed.
C. The set has a standard deviation greater than zero.
Re: Which of the following statements must be true about the dat
[#permalink]
11 Aug 2018, 14:22
11 Aug 2018, 14:22
1
We're looking for what MUST be true:
A: The median on a box plot is the line inside the box. Here, that line falls closer to the right than the left, which means that the median is closer to the 75th percentile (median of upper half of data) than the 25th percentile (median of lower half of data).
B: We have no clue what the distribution of the data is, so we can safely say that this mustn't be true. We can also note that the median doesn't fall on the 50th percentile, so this isn't true.
C: The set clearly has some kind of spread, so the SD is greater than 0.
The answer is just C.
A: The median on a box plot is the line inside the box. Here, that line falls closer to the right than the left, which means that the median is closer to the 75th percentile (median of upper half of data) than the 25th percentile (median of lower half of data).
B: We have no clue what the distribution of the data is, so we can safely say that this mustn't be true. We can also note that the median doesn't fall on the 50th percentile, so this isn't true.
C: The set clearly has some kind of spread, so the SD is greater than 0.
The answer is just C.
Moderator
Joined: 02 Jan 2020
Status:GRE Quant Tutor
Posts: 1141
Given Kudos: 9
Location: India
Concentration: General Management
Schools: XLRI Jamshedpur, India - Class of 2014
GMAT 1: 700 Q51 V31
GPA: 2.8
WE:Engineering (Computer Software)
Re: Which of the following statements must be true about the dat
[#permalink]
27 May 2020, 05:38
27 May 2020, 05:38
1
I have posted a detailed video on YouTube which talks about all aspects of Box and Whisker Plot.
Hope it helps!
Hope it helps!
