Statistics Articles
The GMAT Official Guide 2019 edition, part 2
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 like, you can start with [...]
Executive Assessment: Quant Strategies for Faster Solutions - Part 3
Welcome to the third installment of Quant Strategies for the EA! If you’re just joining us now, you might want to go back to the first part and work your way [...]
Know the GMAT Code: Work Fast on IR Tables
In today’s latest installment of our Know the Code series, we’re going to talk about the most efficient way to tackle Table problems in the Integrated Reasoning (IR) section of [...]
Know the GMAT Code: Interest Rates on the GMAT
I’m excited about the problem I have to share with you today in the latest installment of our Know the Code series. :) Interest rate problems can be extremely annoying [...]
Final Exam: Are You a Great GMAT Guesser? - Part 4
Okay, you’ve had several weeks to practice your GMAT guessing . Let’s put your newfound skills to the test! (If you’re reading all these articles at once, stop here. Give yourself [...]
How to Become a Great GMAT Guesser - Part 1
You’ve probably figured out by now that, sometimes, you’re just going to have to guess on the GMAT. If you’ve got 5 seconds to get something in before the test [...]
GMAT Data Sufficiency: Follow Your Process - Part 2
In the first installment of this series, we talked about an overall process that allows you to work methodically and make sure that you’re performing the necessary analysis to give [...]
Tackling Max/Min Statistics on the GMAT – Part 3
Welcome to our third and final installment dedicated to those pesky maximize/minimize quant problems. If you haven’t yet reviewed the earlier installments, start with part 1 and work your way [...]
Tackling Max/Min Statistics on the GMAT - Part 2
Last time , we discussed two GMATPrep® problems that simultaneously tested statistics and the concept of maximizing or minimizing a value. The GMAT could ask you to maximize or minimize [...]
Tackling Max/Min Statistics on the GMAT - Part 1
Blast from the past! I first discussed the problems in this series way back in 2009. I’m reviving the series now because too many people just aren’t comfortable handling the [...]
Avoiding the C-Trap in Data Sufficiency
Have you heard of the C-Trap? I’m not going to tell you what it is yet. Try this problem from GMATPrep® first and see whether you can avoid it: * “In [...]
Story Problems: Make Them Real - Part 2
Last time, we talked about how to make story problems real ; if you haven’t read that article yet, go take a look before you continue with this one. I’ve got [...]
Want a 750+? Do This Question in 30 Seconds
Lately, I’ve been speaking with a few different students who are aiming for a 750+ score – in other words, stratospheric! I’ve tried (and hope I’ve succeeded!) to impress upon [...]
How to Make Weighted Average Problems Easy
Most people don’t like weighted averages, and for good reason. The formula is complicated, and these often come in the form of “story” problems, which are hard to set up. [...]
Statistical “Combo” Problems
Today we’re going to talk about statistics problems in which we have to combine knowledge of more than one concept. Try this GMATPrep® problem first; set your timer for 2 [...]
Thursdays With Ron: Standard Deviation
Every other Thursday, our instructor Ron Purewal (known on the Beat the GMAT forums as lunarpower ) hosts a free study hall session, called Thursdays with Ron , where anyone [...]
Manhattan GMAT Challenge Problem of the Week - 18 Feb 10
Welcome back to this week's Challenge Problem! As always, the problem and solution below were written by one of our fantastic instructors . Each challenge problem represents a 700+ level [...]
How to Analyze a GMATPrep Problem Solving Question
Last week, we took a look at how to analyze a Critical Reasoning question . This week, we’re going to do the same with a Problem Solving question. The GMATPrep® [...]
Dealing with Very Hard Max/Min Statistics Problems
Last week, we tackled two GMATPrep® questions; if you missed that article, go read it before continuing with this one. Make sure you try the two sample problems and take [...]