Mathematics (2019) Grade(s): 09-12 - Algebra I with Probability
MA19.A1.41
Explain why the conditional probability of A given B is the fraction of B’s outcomes that also belong to A, and interpret the answer in context.
Explain why the conditional probability of A given B is the fraction of B’s outcomes that also belong to A, and interpret the answer in context.
COS Examples
Example: the probability of drawing a king from a deck of cards, given that it is a face card, is $\frac{4/52}{12/52}$, which is $\frac{1}{3}$.