Probability Exam Worksheet With Answer Key - Math 211, Eastern Mediterranean University Page 2
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34SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
10) The data in the table represent the number of consumer complaints against major U.S.
10)
airlines. If one complaint from the table is randomly selected, find the probability that it
was filed against United Airlines.
Airline
Number of Complaints
United
1172
Northwest
765
Continental
563
11) The data in the table represent the number of consumer complaints against major U.S.
11)
airlines. If one complaint from the table is randomly selected, find the probability that it
was filed against Northwest Airlines.
Airline
Number of Complaints
United
1172
Northwest
765
Continental
563
12) The data in the table represent the number of consumer complaints against major U.S.
12)
airlines. If one complaint from the table is randomly selected, find the probability that it
was filed against Continental Airlines.
Airline
Number of Complaints
United
1172
Northwest
765
Continental
563
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
13) The distribution of blood types for 100 Americans is listed in the table. If one donor is selected at
13)
random, find the probability of selecting a person with blood type A+.
Blood Type O+ O- A+ A- B+ B- AB+ AB-
Number
37
6
34
6
10
2
4
1
A) 0.4
B) 0.68
C) 0.45
D) 0.34
14) The distribution of blood types for 100 Americans is listed in the table. If one donor is selected at
14)
random, find the probability of selecting a person with blood type A+ or A-.
Blood Type O+ O- A+ A- B+ B- AB+ AB-
Number
37
6
34
6
10
2
4
1
A) 0.02
B) 0.06
C) 0.4
D) 0.34
2
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