1. Do Now
p. 795 # 32 A B C D

2. SWBAT find the probability of mutually exclusive events.
Objective
SWBAT find the probability of mutually exclusive events.

3. Mutually Exclusive – Two events that cannot happen at the same time.
Ex. If a number is chosen from a bag with numbers 1 – 10 you cannot choose a number that is both 5 and even. You can choose a number that is five or even.
What is the probability of choosing a number that is five or even?
# of possible outcomes =
# of favorable outcomes

5. COOKIES A plate has 6 chocolate chip cookies, 4 peanut butter cookies, and 5 sugar cookies. What is the probability of randomly selecting a chocolate chip cookie or a sugar cookie? A B C D

6. Deck of Cards

7. P(black nine or heart) = P(black nine) + P(heart)
Probability of Mutually Exclusive Events
CARDS You draw a card from a standard deck of playing cards. What is the probability that the card will be a black nine or any heart?
The events are mutually exclusive because the card cannot be both a black nine and a heart at the same time.
P(black nine or heart) = P(black nine) + P(heart)

8. CARDS You draw a card from a standard deck of playing cards
CARDS You draw a card from a standard deck of playing cards. What is the probability that the card will be a club or a red face card? A. B. C. D. A B C D

9. 1. CARDS What is the probability of drawing an 8 or 5 from a standard deck of playing cards?
2. Textbook p. 793 # 4 A B C D