Probability Calculator
Calculate probabilities for two events including independent and dependent events.
Understanding Probability
Probability measures the likelihood of an event occurring, ranging from 0 (impossible) to 1 (certain).
Key Formulas:
- P(A'): 1 − P(A)
- P(B'): 1 − P(B)
- P(A∩B): P(A) × P(B) (independent events)
- P(A∪B): P(A) + P(B) − P(A∩B)
- P(AΔB): P(A∪B) − P(A∩B)
- P((A∪B)'): 1 − P(A∪B)
- P(A but not B): P(A) − P(A∩B)
- P(B but not A): P(B) − P(A∩B)