OpenStax, Algebra and Trigonometry 2e §13.5 Counting Principles · Exercise 12 · Combinatorics · Permutations & combinations

Counting Principles · Exercise 12

Answer the following questions.

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

~5 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §13.5 Counting Principles · Exercise 12

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