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4. Counting with trees | Crowds | Computer animation | Khan Academy

Shows how a tree diagram handles counting problems where the number of options changes at each step, something a simple table struggles with. A quick technique upgrade ahead of the casting problem.

Khan Academy Labs · 1 min · Advanced · ANI · Animation · 2016

What you take away

Choose a tree diagram over a table when the number of choices varies at each step.

Watch it

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