GMATPREP Standard Deviation

Expert replies

Previous Topic Next Topic

cveluswamy: Junior | Next Rank: 30 Posts; Posts: 16; Joined: Tue Mar 20, 2007 6:02 am

by cveluswamy » Sat Aug 04, 2007 12:03 pm

Can some one explain this. Thanks

Attachments

Like this post

Source: Beat The GMAT — Problem Solving | Sat Aug 04, 2007 12:03 pm

jayhawk2001: Community Manager; Posts: 789; Joined: Sun Jan 28, 2007 3:51 pmFollowed by: 1 member; Location: Silicon valley, California; Thanked: 30 times

by jayhawk2001 » Sat Aug 04, 2007 3:04 pm

2.5 standard deviations = 2.5 * 3 = 7.5

2.5 standard deviations from the mean is either < 12.5 or > 27.5

Only 12 fits the bill

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

559 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review