The GMAT/MBA Library

Explore the world's largest collection of GMAT prep and MBA admissions content.

The GMAT Official Guide 2019 edition, part 2

by Manhattan Prep on July 11, 2018

Here we go, here we go! Welcome to part 2 of our little series on the latest Official Guide, hot off the presses; if you’d [...]

Land Your Score: Standard Deviation on the GMAT

by Kaplan GMAT on October 22, 2016

Understand what standard deviation is and how it is calculated.

Common GMAT Topic: Descriptive Statistics

by Magoosh GMAT on September 13, 2016

Learn some basic descriptive statistics formulas.

GMAT Statistics 101

by Economist GMAT Tutor on December 12, 2015

Familiarize yourself with these terms and Statistics questions will become much easier.

Standard Deviation on the GMAT

by GMAT Prep Now on September 16, 2015

The formula for standard deviation is not pretty. Fortunately, you don’t need to memorize it. Instead, you need to know what standard deviation measures. In this [...]

Quickly Solve Standard Deviation Questions on the GMAT

by Veritas Prep on May 12, 2014

Check out a four-step process to help you solve for standard deviation.

Story Problems: Make Them Real – Part 2

by Manhattan Prep on September 16, 2013

Don't miss Stacey's key takeaways for advanced math topics and story problems.

Statistics Overview

by Vivian Kerr on March 9, 2011

Here’s a quick overview of the necessary concepts and formulas to solve the Statistics questions on the GMAT. Domain – The inputs of a function; all [...]

Thursdays With Ron: Standard Deviation

by Caitlin Clay on October 15, 2010

Every other Thursday, our instructor Ron Purewal (known on the Beat the GMAT forums as lunarpower) hosts a free study hall session, called Thursdays [...]

Kaplan GMAT Challenge Question: Standard Deviation

by Kaplan GMAT on October 5, 2010

Are you up to par with Standard Deviation?  Let’s take a look at this sample question and detailed solution.  Challenge yourself by trying out the [...]

GMAT Statistics – Standard Deviation

by Kaplan GMAT on August 27, 2009

  On the GMAT, the statistics concepts tested include mean, median, mode, range, and standard deviation.  The mean (or commonly referred to as the ‘average’) of [...]