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13.5 Exercise 31

Avg difficulty 2.5

Answer the following questions.

What is the term for the arrangement that selects r r objects from a set of n n objects when the order of the r r objects is not important? What is the formula for calculating the number of possible outcomes for this type of arrangement?

OpenStax Algebra and Trigonometry 2e, 13.5 Counting Principles, exercise 31

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.