Bunker Hill Community College
MAT181/MAT183
Center for SelfDirected Learning
Brase & Brase
Rev. 1/09
Practice Test #3
1.
Give a brief answer with explanation for each part.
a)
If P(A) = 0.78, what is P(A
C
)?
b)
Suppose a sample space has four equally likely, mutually exclusive outcomes
identified as A, B, C, and D.
What is the value of P(A or B)?
c)
Suppose a sample space has four equally likely, mutually exclusive outcomes
identified as A, B, C, and D.
What is the value of P(A and B)?
2.
An urn contains 8 balls identical in every respect except color.
There are 4 blue balls,
3 red balls, and 1 white ball.
a)
If you select one ball from the urn what is the probability that it is blue or white?
b)
If you draw two balls without replacing the first one, what is the probability that
the first is red and the second is white?
c)
If you draw two balls but replace the first one, what is the probability that the first
is red and the second is white?
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 Spring '11
 mackenzi
 Probability theory, Parttime, Compact Disc, Voting system, Bunker Hill Community College

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