Category: GMAT Data Insights

GMAT Data Sufficiency Tips
GMAT Data Sufficiency questions may be unique, but they aren’t impossible. Use these 6 tips to master Data Sufficiency on the GMAT!

Difficult Numerical Reasoning Questions
The GMAT Data Insights section excels at creating problems that frustrate folks who try to get through math by memorizing formulas. It excels at creating outofthebox problems that really demand folks use logic and number sense to dissect the problem. Here are four outofthebox Data Sufficiency problems to consider. 1) Peter went to the store…

Comparing Ratios on the GMAT
Among other things, this post is a case study of an OG DS question: OG 12th Edition, Data Sufficiency Practice Problem #23 Here is the problem that appears in the OG: 23) If p1 and p2 are the populations and r1 and r2 the number of representatives of District 1 and District 2 respectively, the…

GMAT Math: Possibilities for Variables
How do we know what the possible values for a variable on the GMAT are? First of all, consider this DS problem 1) Is P > Q? Statement #1: P = 5*Q Statement #2: P = Q + R For folks who are not as comfortable with math, or are a bit rusty with math,…

GMAT Data Insights: Scatterplots
One of the most common types of graphs is statistics and in the quantitative sciences is a scatterplot. A scatterplot is a way of displaying bivariate data: that is, data in which we measure two different variables for each participant. For example, suppose we ask several people both their age & their weight, or both…

GMAT Data Insights: Bubble Charts
Fact: One type of chart about which the GMAT DI can ask is a bubble chart. What in Sam Hill is a bubble chart? Scatterplots A bubble chart is a close cousin to a scatterplot. In a scatterplot, each data point has values in two different variables, and for each data point, its vertical…

GMAT Data Insights: Correlation and Trend Lines in Scatterplots
One reason we graph data in a scatterplot is because we are looking for patterns. The simplest of all possible patterns to find on a scatterplot is a straight line pattern. Correlation When the points on a scatterplot lie more or less in a straightish line, that is called correlation. When it’s a straight line…

Data Insights Question Type: Bar Charts
Fact: One common way data will displayed on GMAT Data Insights questions is in bar charts. This post is a whirlwind overview of what you need to know about the varieties of bar charts in order to be successful with them on the new DI section. Bars & Columns Some sources call a graph…

The Data Insights Calculator
On the GMAT Quantitative section, there is no calculator. On the Data Insights section, there is a builtin calculator. The calculator that comes with GMAT’s official DI practice questions is quite similar, almost identical, to what you will see in the test. Here is a brief tour of that calculator. The Calculator First of all,…

MultiSource Data Insights Practice Question: Draw Loss Poker
The following is a set of four GMAT Data Insights MSR questions. There are two information cards in this question. You are allowed to use a calculator. For the set of four, give yourself 10 minutes. The cards The questions 1. Player A initially draws threeofakind and chooses not to discard at all on…