GMAT Quantitative

A comprehensive introduction to the quantitative reasoning skills tested on the GMAT, covering arithmetic, algebra, geometry, and data analysis.

Advanced Topics

Data Analysis and Interpretation

Understanding Data

Data analysis questions involve interpreting charts, tables, and graphs. You'll need to extract relevant information, perform calculations, and recognize trends or patterns.

Core Concepts

  • Mean, median, mode, and range
  • Interpreting bar graphs, line graphs, pie charts, and tables
  • Probability basics

Everyday Use

Data analysis is useful for understanding statistics in news articles, sports scores, and business reports.

Tips

  • Always check units and labels on graphs.
  • Look for patterns or outliers in the data.

Examples

  • A table shows the sales of 5 products. The mean sales are calculated by adding all sales and dividing by 5.

  • A pie chart shows 30% of students prefer math, and 70% prefer reading. Out of 200 students, 60 prefer math.

In a Nutshell

Data analysis involves reading, interpreting, and reasoning with numbers and visual information.