11.2 Conditional probability and independence
Unit 11 · Probability and counting
Ideas in this lesson
Conditional probability
Restrict the sample space to the conditioning event, which must have positive probability.
Independent events
For independent events, the probability of their intersection is the product of their probabilities.
Sampling without replacement
Update both the favorable count and the total count after each draw.
Test independence from a table
Compare a conditional probability with its corresponding unconditional probability.
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