Ms. Garcia Math
Dependent Events
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Two events are dependent if the result of the first event affects the outcome of the second event
Example: What is the probability of choosing a green candy and then a red candy, without replacement?
6 green + 4 red = 10 candies
Probability of the first event:
P(green)=6/10
Because the first candy is NOT being replaced, the probability of the second candy depends on the first.
5 green + 4 red = 9 candies
Probability of the second event:
P(red)=4/9
Multiply the probabilities together to determine the probability of both events occurring.
Independent Events
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Two events are independent if the occurrence of one does not affect the probability of the other.
Tossing a coin and rolling a number cube are independent events.