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Counting Principles and Permutations by Ace Cachuela is a document available to read on EtoBox.

There are three ways to count outcomes when events occur together: 1) Fundamental counting principle states that if one event has m outcomes and another has n outcomes, together they have mn outcomes. 2) Permutations consider order and distinguish objects. The number of permutations of n objects taken r at a time is nPr = n!. 3) Combinations do not consider order and are the number of subsets of size r that can be selected from a set of n objects. The number of combinations is nCr = n!/(n-r)!r!.

Author

Ace Cachuela

Language

EN