Chapter 7
Probability
Sample spaces and the probability formula, the complement rule, the addition and multiplication rules for combined events, conditional probability, and expected frequency.
Chapter progress — 0/6 concepts0%
7.1 Calculating Probability
7.2 Probabilities of Combined Events
7.3 Calculation of Expected Frequency
Try it yourself
🔬 Plinko Probability
Drop balls through a triangular grid of pegs and watch the outcomes pile up into a distribution.
Try this: Increase the number of rows and drop many balls at once. Switch to the histogram view.
Look for: See how the pile of balls approaches a smooth bell-shaped (binomial) distribution as you drop more of them.
Simulation by PhET Interactive Simulations, University of Colorado Boulder — licensed CC BY-NC. View on phet.colorado.edu ↗