Glencoe Math: Course 2, Volume 2
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Glencoe Math: Course 2, Volume 2 View details
1. Probability of Simple Events
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Exercise 11 Page 716

D

Practice makes perfect
When calculating probability, we are comparing the number of favorable outcomes to the number of possible outcomes. To calculate the probability that a randomly chosen ball is not green we will use the Probability Formula. P=Favorable Outcomes/Possible Outcomes In the bucket, there is a total of 7 yellow, 6 green, 3 blue, and 8 red balls. The sum of these values is the number of possible outcomes. 7 + 6 + 3 + 8 = 24 balls The number of favorable outcomes is the sum of the yellow, blue, and red balls. 7 + 3 + 8 = 18balls Now we have enough information to calculate P(not green).
P=Favorable Outcomes/Possible Outcomes
P(not green)=18/24
P(not green)=18/6/24/6
P(not green)=3/4
The probability of not choosing a green ball is 34, which corresponds to option D.