Probability and Odds

1
Probability and Odds

• Weather ?
• or
• Lottery Ticket ?

2
Probability successes
total possible

• Odds successes
• failures

3
Probability and Weather

• The weatherperson says there is a 70 chance of
  rain this afternoon. What is the probability it
  will not rain?

4
Probability and Weather

• The weatherperson says there is a 70 chance of
  rain this afternoon. What are the odds it will
  rain?

5
Probability and Weather

• The weatherperson says there is a 70 chance of
  rain this afternoon. What are the odds it will
  NOT rain?

6
Probability and Dice
You roll a die once. What is the probability
P(4)
P(even )
7
Probability and Dice
You roll two dice. What is the probability
P(both even )
P(two 4s)
8
Probability and Cards

• You pick one card from a standard 52 card deck.
  What is the probability of picking a Jack?

9
Probability and Cards

• You pick one card from a standard 52 card deck.
  What is the probability of picking a black card?

10
Probability and Cards

• What is the probability of being dealt exactly 3
  kings in a hand of 5 card stud poker?