1
MATH 1313 Review for Test 4
Where: CASA Testing Center
Time: 50 minutes
Number of questions: 14 (all multiple choice)
What is covered:
7.5, 7.6, Chapter 8.
Do not forget to reserve a seat!
Take practice Test – 4!
10% of your best score will be added to your test grade at the end of the
semester.
There will be a
formula sheet
available in the test; you can see that formula sheet on my
website. Also, Ztable will be provided.

1) Let
P(B) = 0.26,
P(A
B) = 0.12,
and
P(B
A
c
) = 0.80.
Find
P(A  B
c
).
2) In a survey of 1,000 car owners, 85% of them have car insurance. Of those who have car
insurance, 45% have had an accident and 52% of those who do not have car insurance did not
have an accident in the past year.
a) What is the probability that a car owner selected at random had an accident?
b) Given that the person has car insurance, what is the probability that he had an accident?
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 Spring '08
 CONSTANTE
 Math, Normal Distribution, Probability, Standard Deviation, flu

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