CHAPTER 3- PROBABILITY. Designed to boost confidence and grades!

CHAPTER 3- PROBABILITY.
Designed to boost confidence and grades!
Probability Experiment - Answer: an action, or trial, through which specific results are
obtained


Outcome - Answer: the result of a single trial


Sample Space - Answer: the set of all possible outcomes


Event - Answer: a subset of the sample space; may consist of one or more outcomes


Tree Diagram - Answer: a visual display of the outcomes of a probability experiment by
using branches that originate from a starting point


Simple Event - Answer: an event that consists of a single outcome


Fundamental Counting Principle - Answer: if one event can occur in m ways and a
second event can occur in n ways, then the number of ways the events can occur in
sequence is m*n


Classical Probability - Answer: used when each outcome a sample space is equally
likely to occur


Empirical Probability - Answer: based on observations obtained from probability
experiments


Subjective Probability - Answer: result from intuition, educated guesses, and estimates


Complement of an Event - Answer: the set of all outcomes in a sample space that are
not included in the event


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