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.
Set T consists of all multiples of 5 from 30 to 225 inclusiv
[#permalink]
22 Oct 2017, 06:06
22 Oct 2017, 06:06
00:00
Question Stats:
76% (00:57) correct
23% (01:21) wrong based on 42 sessions
Hide Show timer Statistics
Set T consists of all multiples of 5 from 30 to 225 inclusive
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 correct solution.
Quantity A |
Quantity B |
Mean of Set T |
Median of Set T |
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 correct solution.
Re: Set T consists of all multiples of 5 from 30 to 225 inclusiv
[#permalink]
22 Oct 2017, 09:00
22 Oct 2017, 09:00
1
The mean of set S is computed as \(\frac{\frac{40}{2}(30+225)}{40} = 127.5\) using the formula for the sum of an arithmetic series at the numerator. The median of S, given that S has 40 elements, is the mean of the 20 and 21 elements of the series, i.e. \(\frac{125+130}{2} = 127.5\). Then quantities A and B are equal and answer is C
Re: Set T consists of all multiples of 5 from 30 to 225 inclusiv
[#permalink]
23 Mar 2019, 16:48
23 Mar 2019, 16:48
1
IlCreatore wrote:
The mean of set S is computed as \(\frac{\frac{40}{2}(30+225)}{40} = 127.5\) using the formula for the sum of an arithmetic series at the numerator. The median of S, given that S has 40 elements, is the mean of the 20 and 21 elements of the series, i.e. \(\frac{125+130}{2} = 127.5\). Then quantities A and B are equal and answer is C
Any set that is evenly distributed will have mean = median. In this case, the list os equally distributed as a multiple of 5. Ans - C
