QMS 102 Lecture Notes - Lecture 7: Decision Tree Learning, Collectively Exhaustive Events, Sample Space

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Nursel Ruzgar

Document Summary

Probability the chances that an uncertain even will occur (always between 0 and 1) Impossible event an event that has no chance of occurring (probability is 0) Certain event an event that is sure to occur (probability is 1) Random experiment is an action/process that leads to one of several possible outcomes. Exhaustive all possible outcomes must be included (die roll - 1, 2, 3, 4, 5, 6) Mutually exclusive no two outcomes can occur at the same time (die roll - odd number or even number) Sample space list of all exhaustive and mutually exclusive outcomes. Simple probability refers to the probability of a simple event. Joint probability refers to the probability of an occurrence of two or more events. Collectively exhaustive one of the events must occur. Simple event an individual outcome of a sample space. Event a collection or set of one or more simple events in a sample space.