Statistics · Module 3 · Probability

Probability Walkthrough

Watch coins, dice, cards and Venn diagrams turn chance into numbers: sample spaces, the law of large numbers, the addition and multiplication rules, conditional probability, tree diagrams and the surprising math of screening tests. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · Statistics Study Tools · CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Practice next in the Probability Lab. Coin flips and dice rolls in the animations come from a fixed random sequence, so a replay shows the same results. Set A is drawn in blue, set B in coral and their overlap in purple. The screening test numbers are made up for learning and are not about any real test.