Flip a coin

a study in probability

created by Johan Frisk

A coin toss simulator

We have a poor grasp on probability. Most of us have difficulties estimating the results of flipping a fair coin.

By using this simulator you will be able to improve your intuition about random events.

How to use it

  • A slider lets you decide the number of consecutive coin tosses.
  • A button at the bottom of the first tab lets you prepare new plots.
  • A button on the second tab lets you redraw a histogram of outcomes.

Sample plots

Interested?