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# Discrete Random Variables

## A variable having a countable number of values

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• Read

## Discrete Random Variables

by Brian Steffen //at grade
Introduces discrete random variables.
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• Real World Application

## Tree Diagram

by Ross Flek //at grade
Students will determine which of the given sports outcomes can be represented with discrete random variables and why. Then they will represent those situations with tree diagrams.
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