Rule of Product Applied to Decks of Cards
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If there are ways to do
and
ways to do
no matter what the result was for
, then the number of ways to do both
and
is
.
Contributed by: S. M. Blinder (July 2018)
Open content licensed under CC BY-NC-SA
Snapshots
Details
The product rule generalizes when there are more than two kinds of results, as long as they are pairwise independent. So .
Reference
[2] Wikipedia. "Rule of Product." (Jun 4, 2018) en.wikipedia.org/wiki/Rule_of_product.
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