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10 cards from this deck
Selecting items without returning them before next selection
Changes because composition of group changes
Dependent (not independent)
Multiply along the branches
Add across different paths
Sampling w/o replacement from finite pop. with 2 types
All probabilities must sum to 1
Number of ways to select rrr objects from nnn objects
favourable outcomestotal outcomes\frac{\text{favourable outcomes}}{\text{total outcomes}}total outcomesfavourable outcomes
Finite, two distinct categories, sampled w/o replacement
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