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Fundamental Counting Principle

Author: Jonathan Osters

Source: Image of spinner created by Jonathan Osters; Red Die; Creative Commons: http://bit.ly/PJWDeM

Video Transcript
Terms to Know
Fundamental Counting Principle

If chance experiment A has m possible outcomes for one trial, and chance experiment B has n possible outcomes for its trial (independent of the first trial), then there are mxn potential outcomes when A and B are done together.

Tree Diagram

A way to visualize the different "paths" that a sequence of chance experiments could take.

Formulas to Know
Fundamental Counting Principle

total space possible space outcomes equals a subscript 1 times a subscript 2 times a subscript 3 times... times a subscript n

where a subscript n is the number of ways for a specific independent event.