Probability and Combinations

Determine the probabilities of events when arrangement order does not matter

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.

Probability and Combinations

Use combinations to determine the probability that a specific event will occur.
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• Video

Probability and Combinations: A Sample Application

This video demonstrates a sample use of probability and combinations.
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• Video

Probability and Combinations: An Explanation of the Concept

This video provides an explanation of the concept of probability and combinations.
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• Critical Thinking

Probability and Combinations Discussion Questions

A list of student-submitted discussion questions for Probability and Combinations.
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• Real World Application

Beating the Odds

Using combinations, you can figure out how to guarantee you win the lottery.
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• Real World Application

Combinations

Students will analyze their chances of winning the lottery, using Combinations.
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• Real World Application

Find out the chance that two people in a room of 25 people will share a birthday.
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• Study Guide