Clarifying the nature of probability can help to improve our reasoning. This article went live on March second, two thousand nineteen, at zero minutes past eight in the morning.

An animated guide to probability explains how to express probability as fractions and percentages based on the ratio of the number of ways an outcome can happen and the total number of outcomes.

In professional baseball’s World Series, the championship is decided in a best-of-seven format. The first team to win four games gets the pennant. Curiously, series that go on for the full seven games ...