Independent events

For independent events: P(A∩B) = P(A)·P(B) and P(A∪B) = P(A) + P(B) − P(A)·P(B). Complement: P(¬A) = 1 − P(A).

Frequently Asked Questions

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Our Probability Calculator uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.

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