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Probability and Odds

Probability and Odds. Section 12.7. Probability and Odd. 6 Red 5 blue 3 green Probability: favorable / possible P(Red) = favorable (6) total (6+5+3=14) P(Red) = 6/14 Odds: favorable / unfavorable How are they different? 6 favorable 8 unfavorable Odd: 6/8 3/4.

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Probability and Odds

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  1. Probability and Odds Section 12.7

  2. Probability and Odd 6 Red 5 blue 3 green • Probability: favorable / possible • P(Red) = favorable (6) total (6+5+3=14) • P(Red) = 6/14 • Odds: favorable / unfavorable • How are they different? • 6 favorable 8 unfavorable • Odd: 6/8 3/4

  3. Examples Probability 7 Red 12 Green 11 Black • P(Green) • P(Green or Red) • P(not black) • P(Not purple) Dart Target : inner circle radius 5 cm, outer circle 10 cm • P (inner circle)

  4. Examples Odds 7 Red 12 Green 11 Black • Odds(Green) • Odds(Green or Red) • Odds(not black) Dart Target : inner circle radius 5 cm, outer circle 10 cm • odds (inner circle)

  5. Converting between Odds to Probability • Odds are 6:33 (6 to 33) • How many favorable outcomes? 6 • How many total outcomes (favorable + unfavorable) • 6 + 33 = 39 • What is the Probability( favorable / total) • 6 / 39 2/13

  6. Converting between Probability to Odds • Probability is 35% • Favorable is 35 • Unfavorable is 65 • Odds: 35 to 65 7 to 13 • Probability is 85% • Favorable • Unfavorable • Odds

  7. Classwork(homework) • Chapter 12.7 #1-34

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