Probability, also known as probability, chance rate or probability and possibility, is the basic concept of mathematical probability theory, a real number between 0 and 1, and a measure of the possibility of random events. It is often called probability in physics.

The first person to calculate the probability systematically was cardano in the 6th century/kloc-0. This is recorded in his book. The content of probability in the book was translated from Latin by Gould.

Mathematical probability knowledge point

1. events can be divided into deterministic events and uncertain events, also known as random events.

2. Representation of events and probabilities: In English, capital letters A, B, C, … are generally used to represent the probability p of event A, which can be written as p (a) = p The probability of inevitable events is 1.

3. Event probability: the probability of inevitable events is 1, and the probability of impossible events is 0.