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 mean of the 45 score
[#permalink]
01 Jun 2021, 00:10
01 Jun 2021, 00:10
Expert Reply
5
Bookmarks
00:00
Question Stats:
50% (01:19) correct
50% (01:48) wrong based on 38 sessions
Hide Show timer Statistics
Attachment:
GRE The mean of the 45 scores.jpg [ 29.3 KiB | Viewed 2416 times ]
Quantity A |
Quantity B |
The mean of the 45 scores |
The median of the 45 score |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Re: The mean of the 45 score
[#permalink]
01 Jun 2021, 18:42
01 Jun 2021, 18:42
1
Weighted avg. of the mean of the group, both A and B
\(\frac{15}{45}\)*80 + \(\frac{30}{45}\)*74 = 75.92
Weighted avg. of median of the group, also including weights for each respective sub group, A and B.
\(\frac{15}{45}\)*84 + \(\frac{30}{45}\)*72 = 76
Answer should be B.
\(\frac{15}{45}\)*80 + \(\frac{30}{45}\)*74 = 75.92
Weighted avg. of median of the group, also including weights for each respective sub group, A and B.
\(\frac{15}{45}\)*84 + \(\frac{30}{45}\)*72 = 76
Answer should be B.
Re: The mean of the 45 score
[#permalink]
03 Jun 2021, 07:36
03 Jun 2021, 07:36
1
The answer should be D because no matter what the mean is, we don't have any information to determine the pro forma median.
