Lesson 12-9 Pages 650-655
Probability of
Compound
Events
What you will learn!
1. How to find the probability
of independent and
dependent events.
2. How to find the probability
of mutually exclusive
events.
Compound events
Independent events
Dependent events
Mutually exclusive events
What you really need to know!
Probability of
Two
Independent
Events
Found by multiplying the
probability of the first
event by the probability
of the second event
P(A and B)
= P(A) • P(B)
What you really need to know!
Is the product of the
probability of A and the
probability of B after A
Probability
occurs
of Two
Dependent
Events
P(A and B) =
P(A) • P(B following A)
What you really need to know!
Found by adding the
probability of the first
event to the probability
Probability
of Mutually of the second event
Exclusive
Events
P(A or B) =
P(A) + P(B)
Page 653
Guided Practice
#’s 4-10
Homework: Pages 653-655
#’s 11-18, 21-28,
33, 34, 36-50
Lesson Check 12-9
Page
755
Lesson 12-9
P(13 or even)
Study Guide and Review
Pages
658-662
#’s 1-30 or 19-30
(Odd answers in back of book)
Prepare for Test!
Page 663
#’s 1-20 or 10-20
Lesson Check 12-9
Prepare for Test!
Pages
664-665
#’s 1-19