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.
On a certain exam, the median grade for a group of 25 students is 67.
[#permalink]
14 May 2021, 09:56
14 May 2021, 09:56
Expert Reply
2
Bookmarks
00:00
Question Stats:
62% (01:20) correct
37% (01:13) wrong based on 27 sessions
Hide Show timer Statistics
On a certain exam, the median grade for a group of 25 students is 67. If the highest grade on the exam is 90, which of the following could be the number of students that scored 67 on the exam?
Indicate all such values.
A. 5
B. 20
C. 24
Indicate all such values.
A. 5
B. 20
C. 24
Retired Moderator
Joined: 16 Apr 2020
Status:Founder & Quant Trainer
Affiliations: Prepster Education
Posts: 1546
Given Kudos: 172
Location: India
WE:Education (Education)
Re: On a certain exam, the median grade for a group of 25 students is 67.
[#permalink]
14 May 2021, 23:11
14 May 2021, 23:11
1
Carcass wrote:
On a certain exam, the median grade for a group of 25 students is 67. If the highest grade on the exam is 90, which of the following could be the number of students that scored 67 on the exam?
Indicate all such values.
A. 5
B. 20
C. 24
Indicate all such values.
A. 5
B. 20
C. 24
We have 25 students in a group, so grade of \(13^{th}\) student should be the Median of the group
|- - - - - - - - - - - - M(67) - - - - - - - - - - - -|
i.e. we have 12 students to the left of M and 12 students to the right of M
Now, Highest grade is 90
|- - - - - - - - - - - - M(67) - - - - - - - - - - - 90|
Let's check the option choices;
I. 5 students have a score of 67
|- - - - - - - - - - (67) (67) (M) (67) (67) - - - - - - - - - 90|
II. 20 students have a score of 67
|- - (67) (67) (67) (67) (67) (67) (67) (67) (67) (67) (M) (67) (67) (67) (67) (67) (67) (67) (67) (67) - - 90|
III. 24 students have a score of 67
|(67) (67) (67) (67) (67) (67) (67) (67) (67) (67) (67) (67) (M) (67) (67) (67) (67) (67) (67) (67) (67) (67) (67) (67) 90|
Re: On a certain exam, the median grade for a group of 25 students is 67.
[#permalink]
15 May 2021, 22:38
15 May 2021, 22:38
COULD word in sentence gives every possibilities...that why a,b,c are answer!!!
