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.
QOTD #3 The bar graph above shows the numbers of people who
[#permalink]
02 Jul 2016, 07:37
02 Jul 2016, 07:37
Expert Reply
1
Bookmarks
00:00
Question Stats:
86% (02:15) correct
13% (02:41) wrong based on 37 sessions
Hide Show timer Statistics
The bar graph above shows the numbers of people who were surveyed about a car in 5 counties. The pie chart above shows the distribution of how the people in County E rated the car for durability, where each person rated the car for durability with one of the integers 1, 2, 3, 4, and 5, where 1 is the worst and 5 is the best.
What was the average (arithmetic mean) rating of the durability of the car in County E?
A) 1.25
B) 1.42
C) 2.53
D) 2.84
E) 3.00
Show: :: OE
There is no need to use the first graph to obtain the actual numbers of people surveyed in County E who gave the car the durability ratings of 1, 2, 3, 4, and 5. We can find the average by just finding the weighted average by using the pie cart. So the average rating of the car by the people surveyed in County E was 0.30(1) + 0.18(2) + 0.17(3) + 0.08(4) + 0.27(5) = 0.3 + 0.36 + 0.51 + 0.32 + 1.35 = 2.84.
Show: :: Image
Attachment:
unnamed(1).gif [ 9.31 KiB | Viewed 7155 times ]
Attachment:
unnamed.gif [ 7.46 KiB | Viewed 7162 times ]
Re: QOTD #3 The bar graph above shows the numbers of people who
[#permalink]
15 Jul 2016, 09:08
15 Jul 2016, 09:08
1
It's the wrong graph for the question.
Re: QOTD #3 The bar graph above shows the numbers of people who
[#permalink]
15 Jul 2016, 11:06
15 Jul 2016, 11:06
Expert Reply
No is correct .............
