Matoaca Middle School Probability Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Counting Principle | If one event can occur in m ways and another event can occur in n ways, then the two events can occur in mn ways.
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| Pascal's Triangle | A triangular pattern of numbers in which each row begins and ends with the number "1", and each number in the middle of a row is equal to the sum of the two numbers immediately above it.
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| tree diagram (for probability) | A diagram that shows all of the possible outcomes for an event. Also called a Counting Tree. Counting trees are most useful when all events are equally likely.
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| probability | how likely it is for an event to happen
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| how to find the probability | P(outcome we are interested in) =
# of equally likely favorable outcomes/
total # of equally likely outcomes"
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| outcomes | different possible results
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| favorable outcomes | results for a particular event to occur
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| experimental probability | actual results for a total number of outcomes
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| theoretical probability | If all results were equally likely to happen, the calculated (predicted) results
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| compound event | the result of combining two or more events. The probability of a compound event is related to the probabilities of the compound events that make it up.
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| independent events | Two events are independent if the occurrence of one of the events gives us no information about whether or not the other event will occur; that is, the events have no influence on each other.
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| probability of independent events occurring | the probability that they both occur is equal to the product of the probabilities of the two individual events
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| dependent event | An event whose outcome is influenced by the outcome of a prior event.
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| simulation | "an experiment that models a real-life situation. Creating a Simulation is a strategy for finding the probability of an event by
experimentation.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
DDavis
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