Flip 100 Coins

Watch the law of large numbers in action. See how 100 coin flips approach the expected 50/50 distribution.

Heads

Tails

Visual Results

Distribution Over Time

Flip to see distribution

Total rounds: 0 | Avg heads:

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The Law of Large Numbers

When flipping 100 coins, you'd expect around 50 heads and 50 tails. In practice, results typically fall within a range due to natural variance.

The standard deviation for 100 fair coin flips is 5, meaning about 68% of the time you'll get between 45 and 55 heads. Getting exactly 50 heads happens only about 8% of the time!

Watch how your average approaches 50 as you flip more rounds. This is the law of large numbers in action—individual results vary, but the average converges to the expected value.