# Rule of Product Applied to Decks of Cards

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram CDF Player or other Wolfram Language products.

Requires a Wolfram Notebook System

Edit on desktop, mobile and cloud with any Wolfram Language product.

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.

## Permanent Citation