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POD October 4, 2012 You do NOT need to write down the problem

POD October 4, 2012 You do NOT need to write down the problem.

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POD October 4, 2012 You do NOT need to write down the problem

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  1. POD October 4, 2012You do NOT need to write down the problem • An Italian restaurant offers a “create your own” pasta dish. You can choose your kind of pasta: angel hair, spaghetti, fettucine, or spiral. Then you can choose a sauce: marinara, meat, oil and garlic, or alfredo. The pasta also comes with a choice of soup or salad. Make a tree diagram to find all of the possible pasta dish combinations • What is the probability you have an angel hair pasta with a salad?

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  9. Odds • The odds of an event compare the number of favorable events and unfavorable events when all outcomes are equally likely. • Odds can be written 3 ways • Fraction • : • to

  10. Odds in favor A bag contains 8 white marbles, 6 red marbles, and 12 blue marbles. What are the odds in favor of selecting a red marble? What the odds in favor of selecting a white marble?

  11. Odds against • A bag contains 4 red cards numbered 1 – 4, 4 white cards numbers 1- 4, and 4 black cards numbered 1 – 4. You choose a card at random. • Odds against selecting a red card • Odds against selecting a card with a 2

  12. Review activity for quiz on Friday Quiz will cover lessons 1 – 3 be sure to use your notes and homework assignments to help you study Section 13.1 has more examples of odds and probability

  13. Probability • Describe in words the probability • Getting tails when you flip a coin • Rolling a 5 on a number cube • Rolling a 9 on a number cube • Getting either a heads or tails when you flip a coin

  14. Probability and Odds • Each letter in MASSACHUSETTS is written on a separate piece of paper and put into a bag. You randomly choose a piece of paper from the bag. Find the probability of the event. Write the probability all three ways. Write the odds all three ways. • You choose a T • You choose an S • Odds in favor that you choose an N • Odds in favor that you choose a A

  15. Probability and Odds • A bag contains 46 blues balloons, 29 red balloons, and 25 purple balloons. • Probability of choosing red balloons • Odds in favor of purple balloons • Odds against blue balloons

  16. Complementary Events • Mrs. Howe surveyed her class and discovered 15% of her students are traveling to the OPRF game on Friday. • Identify the complement of this event. • Find its probability

  17. Tree diagrams Don’t forget each layer/decision must be connected.

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