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Math 225 - Statistical Reasoning for the
Health Sciences Week 4 Exam Study Guide.
Experiment - Answer✔An action, or trial, through which specific results (counts, measurements,
or responses) are obtained.
Outcome - Answer✔Is the result of a single trial in a probability
Sample Space - Answer✔The set of all possible outcomes of a probability experiment
Event - Answer✔A subset of a sample space; It may consist of one or more outcomes
Simple Event - Answer✔An event consisting of only one outcome
Fundamental Counting Principle (FCP) - Answer✔if one event can occur "m" ways and a second
event can occur "n" ways, then the number of ways that two events can occur together is m x n
Classical (Theoretical) Probability - Answer✔Used when each outcome in a sample space is
equally likely to occur
P(E) = Number of outcomes in event E / Total number of outcomes in sample space
Empirical (Statistical) Probability - Answer✔Expressed as the frequency of an event divided by
the total frequency. It is based on observations obtained from probability experiments.
P(E) = Frequency of event E / Total frequency ; =f/n
Law of Large Numbers (LLN) - Answer✔As an experiment is repeated over and over, the
empirical probability of an event approaches the theoretical (actual) probability of the event.
Subjective Probability - Answer✔Uses a probability value based on an educated guess or
estimate, employing opinions and inexact information.
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Math 225 - Statistical Reasoning for the
Health Sciences Week 4 Exam Study Guide.
Experiment - Answer✔An action, or trial, through which specific results (counts, measurements,
or responses) are obtained.
Outcome - Answer✔Is the result of a single trial in a probability
Sample Space - Answer✔The set of all possible outcomes of a probability experiment
Event - Answer✔A subset of a sample space; It may consist of one or more outcomes
Simple Event - Answer✔An event consisting of only one outcome
Fundamental Counting Principle (FCP) - Answer✔if one event can occur "m" ways and a second
event can occur "n" ways, then the number of ways that two events can occur together is m x n
Classical (Theoretical) Probability - Answer✔Used when each outcome in a sample space is
equally likely to occur
P(E) = Number of outcomes in event E / Total number of outcomes in sample space
Empirical (Statistical) Probability - Answer✔Expressed as the frequency of an event divided by
the total frequency. It is based on observations obtained from probability experiments.
P(E) = Frequency of event E / Total frequency ; =f/n
Law of Large Numbers (LLN) - Answer✔As an experiment is repeated over and over, the
empirical probability of an event approaches the theoretical (actual) probability of the event.
Subjective Probability - Answer✔Uses a probability value based on an educated guess or
estimate, employing opinions and inexact information.
1
