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Term

Fundamental Counting Principle
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Permutation
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U5 Stats Vocab

U5 Terms and Definitions

TermDefinition
Fundamental Counting Principle A principle which states that if you have some number (m) of one object and some number (n) of another, then there are m*n ways to get one of each object.
Permutation If you arrange r out of n items, there are nPr ways to combine them, order matters. (ex. a permutation of 3 objects as 1,2,3 is considered different from 3,2,1)
Combination If you arrange r out of n items, there are nCr ways to combine them, order does not matter. (ex. a combination of 3 objects as 1,2,3 is considered the same as 3,2,1)
Sample Space The list of all possible outcomes.
Event A subset of the sample space, which refers to a specific outcome.
Probability The likelihood/chance of specific outcomes of an event happening.
Law of Large Numbers A law which states that the proportion of times that a particular outcome occurs in many repetitions will approach a single number.
Random The occurrences of something happen by chance.
Simulation The imitation of chance behavior based on a model that accurately reflects the situation.
Mutually Exclusive Having no outcomes in common, so they may never happen together.
General Addition Rule When we have the probability of "A or B" that is equal to the probability of A plus the probability of B minus the probability of A and B.
General Multiplication Rule When we have the probability of "A and B" that is equal to the probability of A multiplied by the probability of B given A.
Created by: reynolds24
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