# Aim: What is the probability of a compound event? Do Now: Multiply. Write in simplest form. 1. 4 × 3 2. 7 × 3 5 8 12 14.

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Aim: What is the probability of a compound event? Do Now: Multiply. Write in simplest form. 1. 4 × 3 2. 7 × 3 5 8 12 14

Vocabulary Compound event – consists of two or more different simple events Independent events – the outcome of one event does not have an affect on the other event –With replacement Dependent event – the outcome of one event does have an affect on the other event –Without replacement

Probability of Independent Events Two spinners with the numbers 1 through 7 on each are spun. What is the probability that both spinners will show an even number? P(first spinner is even) = P(second spinner is even) = P(both spinners are even) =

Probability of Dependent Events There are 2 white, 8 red, and 5 blue marbles in a bag. Once a marble is selected, it is not replaced. Find the probability that both marbles are red. P(first red marble) = P(second red marble) = P(both red marbles without replacement) =

Practice Workbook 8-5

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