GMAT Statistics

In this module, you'll learn all of the concepts, techniques and strategies needed to answer statistics questions on the GMAT. In particular, this module covers:

  • Mean, median and mode
  • Range
  • Weighted averages
  • Standard deviation



  • 1. Lesson: Mean, Median & Mode (5:27)
  • 2. Question: Adding k to a Set (1:12)
  • 3. Question: Ages of Ann, Bea and Cho (3:21)
  • 4. Question: Greatest of 5 numbers (2:30)
  • 5. Lesson: When Mean = Median (2:22)
  • 6. Lesson: Weighted Averages (8:00)
  • 7. Lesson: Range and Standard Deviation (10:10)
  • 8. Question: Ordering Standard Deviations (2:09)
  • 9. Question: Comparing Standard Deviations (1:25)
  • 10. Lesson: More Standard Deviation (3:01)
  • 11. Question: Units of Standard Deviation (1:26)
  • 12. Question: Greater than 25 (1:58)
  • 13. Question: New Standard Deviation (1:33)
  • 14. Question: Mean and Median of Set T (0:54)
  • 15. Question: Heights of 6 Children (2:58)
  • 16. Question: Combined Test Scores (2:06)
  • 17. Question: Truth About Sets A & B (3:40)
  • 18. Question: The Range of Set A (2:55)
  • 19. Question: Removing x (3:29)
Total viewing time for the GMAT Statistics module: 61 minutes.

Additional Practice

Each of the above video lessons features a Reinforcement Activities box containing practice questions that are specifically related to the particular concepts covered in that lesson (e.g., the lesson on Weighted Averages). On the other hand, the links below will take you to practice questions that test a wide variety of questions under the general topic of Statistics. Given this, you may find it beneficial to work on the questions below AFTER you’ve mastered the content in the Statistics module above.

- Official GMAT questions about Statistics - Problem Solving

- Official GMAT questions about Statistics - Data Sufficiency

Study Guide

The step-by-step Study Guide will help direct your studies and ensure that you cover everything that the GMAT tests.

Change Playback Speed

You have the option of watching the videos at various speeds (25% faster, 50% faster, etc). To change the playback speed, click the settings icon on the right side of the video status bar.

Practice Wisely

While solving GMAT quant questions, always remember that your one goal is to identify the correct answer as efficiently as possible, and not to please your former math teachers. 

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