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

we will pick new questions that match your level based on your Timer History

Track Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 350,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

The mean of set S is 20. What is the median of set S? 1. In [#permalink]
16 Feb 2008, 09:08

1

This post was BOOKMARKED

The mean of set S is 20. What is the median of set S? 1. In set S there are as many numbers bigger than 20 as there are numbers smaller than 20 2. All numbers in set S are even integers

Re: tricky statistics [#permalink]
16 Feb 2008, 18:52

(1) It is possible that this could imply the median is 20 (and therefore known): i.e. S={17,18,19,21,22,23} median=20 But it is also possible that it could be something else: i.e. S= {2,5,12,21,22,23} median =(12+21)/2=33/2 Not suff.

(2) All numbers in S are even...definitely not suff. by itself.

(1) U (2): there are an equal number of even integers less than 20 and even integers greater than 20 in S. ex. 1 S={16,18,22,24) median =20 ex. 2 S={2,4,22,24} median = (4+22)/2 = 13 Not suff.

Re: tricky statistics [#permalink]
16 Feb 2008, 20:00

jankynoname wrote:

(1) It is possible that this could imply the median is 20 (and therefore known): i.e. S={17,18,19,21,22,23} median=20 But it is also possible that it could be something else: i.e. S= {2,5,12,21,22,23} median =(12+21)/2=33/2 Not suff.

(2) All numbers in S are even...definitely not suff. by itself. (1) U (2): there are an equal number of even integers less than 20 and even integers greater than 20 in S. ex. 1 S={16,18,22,24) median =20 ex. 2 S={2,4,22,24} median = (4+22)/2 = 13 Not suff.I think it's (E).

Hello everyone! Researching, networking, and understanding the “feel” for a school are all part of the essential journey to a top MBA. Wouldn’t it be great... ...

Booth allows you flexibility to communicate in whatever way you see fit. That means you can write yet another boring admissions essay or get creative and submit a poem...