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 was the average (arithmetic mean) score for all the fre
[#permalink]
29 Aug 2018, 16:35
29 Aug 2018, 16:35
Expert Reply
1
Bookmarks
00:00
Question Stats:
96% (01:02) correct
3% (01:13) wrong based on 32 sessions
Hide Show timer Statistics
Score results on a college mathematics proficiency exam
What was the average (arithmetic mean) score for all the freshmen and sophomores taking the exam? Give your answer rounded to the nearest 0.1 points.
| Freshmen | Sophomores | |
| Number of students taking the exam | 120 | 80 |
| Average (arithmetic mean) score on the exam | 78 points | 84 points |
What was the average (arithmetic mean) score for all the freshmen and sophomores taking the exam? Give your answer rounded to the nearest 0.1 points.
Show: :: OA
80.4
Re: What was the average (arithmetic mean) score for all the fre
[#permalink]
30 Aug 2018, 01:16
30 Aug 2018, 01:16
avg = \(\frac{120*78 + 80*84}{200}\)= \(\frac{16080}{200}\) = 80.4
Re: What was the average (arithmetic mean) score for all the fre
[#permalink]
31 Aug 2018, 20:46
31 Aug 2018, 20:46
Good question for practising the weighted average concept
