Acrobat A Printable version of this lesson is available in PDF format. This requires a free plug-in, Adobe Acrobat Reader. You can find out if you need it by clicking on the PDF link. As they mature, they will come to realize that weather reporting, highway planning, television programming, medical treatment options, and insurance policies all depend on probabilistic notions. Probability can always be expressed by a number between 0 and 1. 0 denotes an event that is impossible, while a 1 represents an event that is absolutely certain to occur.
Probability is useful in predicting outcomes from a given set of circumstances.
It will help students to make decisions, simple and complex, as they go through life. For example, if the probability of rain is high, then the student may wish to carry an umbrella or wear a raincoat.