Probability Exam Worksheet With Answer Key - Math 211, Eastern Mediterranean University Page 26
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34170) One hundred people were asked, ʺDo you favor the death penalty?ʺ Of the 33 that answered ʺyesʺ
170)
to the question, 14 were male. Of the 67 that answered ʺnoʺ to the question, six were male. If one
person is selected at random, what is the probability that this person answered ʺyesʺ or was a
male?
A) 0.13
B) 0.39
C) 0.67
D) 0.53
171) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an
171)
ace or a king.
8
1
4
2
A)
B)
C)
D)
13
13
13
13
172) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an
172)
ace or a heart.
3
4
17
7
A)
B)
C)
D)
13
13
52
52
173) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an
173)
ace or a black card.
4
15
29
7
A)
B)
C)
D)
13
26
52
13
174) The events A and B are mutually exclusive. If P(A) = 0.6 and P(B) = 0.2, what is P(A or B)?
174)
A) 0.12
B) 0.4
C) 0.8
D) 0
1
1
1
175) Given that P(A or B) =
, P(A) =
, and P(A and B) =
, find P(B).
175)
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7
9
71
127
55
5
A)
B)
C)
D)
252
252
252
63
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
176) Use the following graph, which shows the types of incidents encountered with drivers
176)
using cell phones, to find the probability that a randomly chosen incident involves either
swerving or almost hitting a car.
26
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