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Probability and Stat

UNIT 1: Understanding Probability Vocabulary

TermDefinition
complement all elements in the universal set, except those in the given set
event any subset of a sample space; an observable occurrence
outcome a possible result of an event
probability the likelihood that an event will occur
sample space the set of all possible outcomes for an event
predict to tell or state in advance
ratio an expression that compares two or more numbers
theoretical probability the ratio of the number of desired outcomes to the total number of possible outcomes
experiment a repeatable simulation of an event
experimental probability the ratio of the number of times an event occurred to the total number of trials
frequency table a table that records the number of times each data point occurs
frequency the number of times an event occurs in a data set
prediction a reasonable guess as to what will occur in a problem
relative frequency the ratio of the number of times an event occurs to the total number of data points
compound event two or more events that happen at the same time
fundamental counting principle principle stating that the total number of possible outcomes in a series of actions is found by multiplying the number of choices for each action
tree diagram a diagram that shows every possible outcome of a compound event
dependent event events in which the outcome of one affects the outcome of the other
independent events events in which the outcome of one do not affect the outcome of the other
simulation a model of a probability experiment
Created by: uservia
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