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Coin flip guides
Plain-language explanations for the probability, patterns, and history behind the world’s simplest random decision.
Guide
Coin flip probability explained
Understand the probability behind heads, tails, and repeated coin flips.
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Is a coin flip really 50/50?
Learn why a fair coin flip is modeled as a 50/50 event and what that means.
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Why coin flip streaks happen
Understand heads and tails streaks in repeated coin flips.
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Coin toss vs. coin flip
Is there a difference between a coin toss and a coin flip?
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Why does a coin land on heads or tails?
A clear explanation of why coins land on one of two faces.
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Coin flip odds
Learn the odds of heads, tails, repeated flips, and streaks.
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The law of large numbers in coin flips
See how larger coin-flip samples tend toward the expected distribution.
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A brief history of coin flipping
Discover how coin flipping became a familiar way to make fair decisions.
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