Calculate the joint probability of three independent events occurring together.
Event Probabilities
Enter a value between 0 and 1 (e.g., 0.5 for 50%).
Statistical Analysis
All Three Occurring12.5000%
At Least One Occurring87.50%
None Occurring12.50%
Exactly One Occurring37.50%
At Least Two Occurring50.00%
About this calculator
Overview
This calculator models the probability of three independent events. Independent events are those where the outcome of one does not affect the outcome of another, such as rolling multiple dice or flipping coins.
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Pro Tips
Ensure all inputs are between 0 and 1 inclusive.
If events are dependent, this multiplicative rule does not apply; you'd need conditional probability.
The 'At Least One' probability is often easier to calculate using the complement: 1 - P(None).
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Fun Facts
"The probability of the intersection of independent events is simply the product of their individual probabilities."
"The 'Lucky Strike' effect shows that winning a 1/100 event three times in a row has a probability of 0.0001%."
"Probability theory for multiple events is the basis for risk assessment in insurance and finance."
