Probability Calculator
Calculate probabilities for single and multiple events using our comprehensive probability calculator.
Probability Calculator
Calculate various types of probabilities
Quick Examples:
• Dice roll (1 out of 6): 16.67%
• Coin flip (1 out of 2): 50%
• Card draw (13 out of 52): 25%
Understanding Probability
Probability is the measure of the likelihood that an event will occur. It's expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.
Types of Probability
- Classical Probability: Based on equally likely outcomes
- Empirical Probability: Based on observed data
- Subjective Probability: Based on personal judgment
Probability Rules
- Addition Rule: P(A or B) = P(A) + P(B) - P(A and B)
- Multiplication Rule: P(A and B) = P(A) × P(B) for independent events
- Complement Rule: P(not A) = 1 - P(A)