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Probability - PowerPoint PPT Presentation


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Probability. 6.4. Outcomes. Possible results of an action Examples: 6 outcomes for rolling a dice (1,2,3,4,56) 2 outcomes for flipping a coin (heads or tails). Event. The outcome or group of outcomes. Probability of an Event. Find the probability of rolling one number cube .

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Presentation Transcript
outcomes
Outcomes
  • Possible results of an action
  • Examples:
    • 6 outcomes for rolling a dice (1,2,3,4,56)
    • 2 outcomes for flipping a coin (heads or tails)
event
Event
  • The outcome or group of outcomes
complement
Complement
  • The opposite of that event

Example:

Rain and No Rain are complements

  • Probability of Event + Complement=1
finding odds
Finding Odds

ODDs in Favor of an Event

ODDs Against an Event

slide12
ODDS

What are the odds that a quarter chosen at random from the five shows a horse?

1 to 4

What are the odds that it shows no horse?

4 to 1

slide13
ODDS

Consider the event of randomly choosing a quarter that shows the outline of a state.

What are the odds in favor of this event?

2 to 3

What are the odds against the event?

3 to 2

homework
Homework
  • Page 298 (2-30 even and 31)
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