stats 48 notes page 5

stats 48 notes page 5 - phenomenon P(event Experiment-the...

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Probability allows us to make the inferential jump from sample to population. The purpose of this chapter is to see what the laws of probability tell us without going into the mathematics of probability theory. Chance behavior is unpredictable in the short run but has a regular and predictable pattern in the long run. Probability describes only what happens in the long run. Probability of an event-the proportion of times the event is expected to occur in many repeated trials of a random
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Unformatted text preview: phenomenon; P(event) Experiment-the process by which an outcome is obtained. Sample space-the set of all possible outcomes from an experiment. Event-a subset of a sample space denoted by a capital letter. Tree diagram-tool used to determine the outcomes of a sample space Probability of a Sample Space 1. The probability of each individual outcome is between 0 and 1. 2. The total of all the individual probabilities equals 1....
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