
The calculator provided computes the probability that an event A or B does not occur, the probability A and/or B occur when they are not mutually exclusive, the probability that both event A and B occur, and the probability that either event A or event B occurs, but not both. This is further affected by whether the events being studied are independent, mutually exclusive, or conditional, among other things. In its most general case, probability can be defined numerically as the number of desired outcomes divided by the total number of outcomes. It follows that the higher the probability of an event, the more certain it is that the event will occur. It is quantified as a number between 0 and 1, with 1 signifying certainty, and 0 signifying that the event cannot occur. Probability is the measure of the likelihood of an event occurring.

Related Standard Deviation Calculator | Sample Size Calculator | Statistics Calculator Use the calculator below to find the area P shown in the normal distribution, as well as the confidence intervals for a range of confidence levels.

Probability of a Series of Independent Events
