Probability is the quantification of the likelihood that an event or a set of events will occur. Using Wolfram|Alpha's broad computational understanding of probability and expansive knowledge of real-world applications of probability theory, you can compute the chances of winning various games driven by random chance, conduct and analyze the experimental outcomes of random trials, visualize and compute the properties of probability distributions and calculate the probabilities of events given a set of conditions.
Compute winnings, analyze bets and determine outcomes for games of chance ranging from the toss of a coin to a game of poker and the draw of your local lottery numbers.
Compute the chance people in a group have of sharing a birthday or investigate the likelihood of people's birthdays falling in a specific date range or month or on a specific day of the week.
Determine the likelihood of any outcome for any number or specification of Bernoulli trials.
Compute the probabilities of various compositions of events or specify individual probabilities to determine the likelihood of some, all or no events occurring.
Statistics Web App
Compute a specific property of a probability distribution, the likelihood that an outcome has of occurring or explore the defining characteristics of a vast set of probability distributions.