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.
What is the mean number of flights taken by the students of Ms. Xs th
[#permalink]
14 Mar 2022, 02:00
14 Mar 2022, 02:00
Expert Reply
00:00
Question Stats:
80% (01:52) correct
20% (02:55) wrong based on 10 sessions
Hide Show timer Statistics
Attachment:
GRE number of students.jpg [ 40.39 KiB | Viewed 1644 times ]
What is the mean number of flights taken by the students of Ms. X’s third-grade class, rounded to the nearest tenth?
3.2
4.5
4.8
5.1
5.3
Re: What is the mean number of flights taken by the students of Ms. Xs th
[#permalink]
14 Mar 2022, 10:45
14 Mar 2022, 10:45
Will wait for OE
What is the mean number of flights taken by the students of Ms. Xs th
[#permalink]
14 Mar 2022, 10:56
14 Mar 2022, 10:56
Expert Reply
OE
The total number of students in the class can be calculated by adding up the heights of all the bars: 6 + 3 + 1 + 5 + 4 + 2 = 21. Each bar represents a number of flights equal to the product of the number of flights and the number of students. Thus the total number of flights is 2 × 6 + 4 × 3 + 5 × 1 + 6 × 5 + 8 × 4 + 10 × 2 = 111. The mean is found by dividing 111 by 21, which is approximately 5.3.
The total number of students in the class can be calculated by adding up the heights of all the bars: 6 + 3 + 1 + 5 + 4 + 2 = 21. Each bar represents a number of flights equal to the product of the number of flights and the number of students. Thus the total number of flights is 2 × 6 + 4 × 3 + 5 × 1 + 6 × 5 + 8 × 4 + 10 × 2 = 111. The mean is found by dividing 111 by 21, which is approximately 5.3.
