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Learn how to find probabilities and odds of events. Includes examples with marbles, letters, and given probabilities.
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Notes Over 2.8 Finding the Probability of an Event Number of favorable outcomes Total number of outcomes Probability = In Exercises 1 and 2, find the probability of choosing a blue marble from a bag of blue and yellow marbles. • Number of blue marbles: 12 • Total number of marbles: 48
Notes Over 2.8 Finding the Probability of an Event Number of favorable outcomes Total number of outcomes Probability = In Exercises 1 and 2, find the probability of choosing a blue marble from a bag of blue and yellow marbles. • Number of yellow marbles: 18 • Total number of marbles: 50
Notes Over 2.8 Finding the Odds of an Event Number of favorable outcomes Number of unfavorable outcomes Odds = Find the odds in choosing the indicated letter from a bag that contains the letters in the given word. • A; CANADA
Notes Over 2.8 Finding the Odds of an Event Number of favorable outcomes Number of unfavorable outcomes Odds = Find the odds in choosing the indicated letter from a bag that contains the letters in the given word. 4. N; ARGENTINA
Notes Over 2.8 Finding the Odds of an Event Number of favorable outcomes Number of unfavorable outcomes Odds = Find the odds in choosing the indicated letter from a bag that contains the letters in the given word. 5. S; RUSSIA
Notes Over 2.8 Finding Odds from Probability Probability event will occur 1 – (Probability event will occur) Odds = Use the given probability to find the odds. 6. The probability that an event will occur is 0.25.
Notes Over 2.8 Finding Odds from Probability Probability event will occur 1 – (Probability event will occur) Odds = Use the given probability to find the odds. 7. The probability that an event will occur is 0.53.