Probability Lab (Coins & Dice)
Flip coins and roll dice thousands of times and compare results with theory.
Trials0
Last result–
Tracked: experimental–
Tracked: theoretical–
What you can learn
- Experimental results wobble in small samples but settle toward the theoretical probability.
- With two dice, 7 is the most likely sum because it has the most combinations.
- Each flip or roll is independent: past results do not change the next one.
Frequently asked questions
What is the law of large numbers?
As you repeat a random experiment more times, the observed frequency gets closer to the theoretical probability.
Why is 7 the most common sum of two dice?
Six of the 36 equally likely outcomes add to 7, more than any other sum.