O'Reilly logo

Statistics for Six Sigma Green Belts with Minitab and JMP by David M. Levine

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

5.2. Some Rules of Probability

Several basic rules govern the theory of probability.

Rule 1: A probability is a number between 0 and 1 that is assigned to an event or outcome of some process or experiment.

The smallest possible probability value is 0. An event or outcome that has a probability of 0 is called a null event and has no chance of occurring. In the case of the die, the event of a face of seven has a probability of 0 because such an event cannot occur. In addition, no event can possibly have a probability that is below 0.

The largest possible probability value is 1.0. An event or outcome that has a probability of 1.0 is called a certain event and must occur. When rolling a single die, the event of a face with fewer than seven dots has ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required