Law of Large Numbers

The law of large numbers states that if a chance experiment is repeated

  • many times,
  • independently, and
  • under the same conditions,
    then the proportion of times that an event occurs gets closer and closer to the theoretical probability of that event.

As you roll a die repeatedly, the proportion of times you roll a 5 gets closer to 1/6.


Remark: The law of large numbers is why we can use simulations to approximate probability distributions.