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Calculate a Desired Event
CONCEPTS
Tips
• To calcuate a desired event for a probability, write out the equation and solve the equation for the desired event.
PRACTICE PROBLEMS
Question 1 A bowl contains 6 red beads, 8 black beads, and a number of green beads. There are no other beads in the bowl. The probability of choosing a black bead from the bowl is 1/3. How many green beads are in the bowl?
-- Answer -- 10
8 / (6 + 8 + g) = 1/3
g = 10
ACT PRACTICE PROBLEMS
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