EXAMPLE 1 Standardized Test Practice

SOLUTION

Let events A and B be getting the winning ticket for the gift certificate and movie passes, respectively. The events are independent. So, the probability is:

EXAMPLE 1 Standardized Test Practice

2005P(A and B) = P(A) P(B)

150=

5

401

30=

1

1200=

1

ANSWER The correct answer is B.

GUIDED PRACTICE for Example 1

1. What If? In Example 1, what is the probability that you win the mall gift certificate but not the booklet of movie passes?

ANSWER 13400

200195P(A and B) = P(A) P(B)

150=

5

4039

30=

1

1200= 39

400= 13