Unformatted text preview: ects. If two parts are drawn randomly, one at a time
with replacement, what is the probability that both parts are defective?
A. 0.014
B. 0.012
C. 0.120
D. 0.102
E. 0.222
(6/50) (6/50) = .014 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Medium
Topic: Probability 1340 Chapter 01  An Introduction to Business Statistics 131. In the word BUSINESS, what is the probability of randomly selecting the letter S?
A. 2/8
B. 1/8
C. 3/8
D. 5/8
3/8 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Probability 132. Suppose that you believe that the probability you will get a grade of B or better in
Introduction to Finance is .6, and the probability that you will get a grade of B or better in
Introduction to Accounting is .5. If these events are independent, what is the probability that
you will get a grade of B or better in both courses?
A. 0.300
B. 0.833
C. 0.600
D. 0.500
E. 0.800
(.6) (.5) = .30 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Easy
Topic: Probability 1341 Chapter 01  An Introduction to Business Statistics 133. In a major Midwestern university, 55% of all undergraduates are female, 25% belong to
a Greek organization (fraternity or sorority) and 40% of all males belong to a Greek
organization.
What percent of the undergraduates are female and in a Greek organization?
A. 55%
B. 25%
C. 60%
D. 7%
E. 15% AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Probability & Intersection 134. In a major Midwestern university, 55% of all undergraduates are female, 25% belong to
a Greek organization (fraternity or sorority) and 40% of all males belong to a Greek
organization.
What is the probability that one randomly selected undergraduate will be either a female or
belong to a Greek organization?
A. .55
B. .73
C. .80
D. .07
E. .87
P(G F) = .55 + .25  .07 = .73 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Probability & Union 1342 Chapter 01  An Introduction to Business Statistics 135. In a major Midwestern university, 55% of all undergraduates are female, 25% belong to
a Greek organization (fraternity or sorority) and 40% of all males belong to a Greek
organization.
What is the probability that an undergraduate is in a Greek organization given that the
undergraduate is a female?
A. .07
B. .55
C. .127
D. .039
E. 138
P(GF) = .07/.55 = .127 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Probability & Conditional 136. In a major Midwestern university, 55% of all undergraduates are female, 25% belong to
a Greek organization (fraternity or sorority) and 40% of all males belong to a Greek
organization.
Are the events "female/not female" and "belongs to a Greek organization" independent?
A. Yes, independent
B. No, not independent
P(GF) P(G) AACSB: Analytical Studies
Bloom's: Analysis
Difficulty: Hard
Topic: Probability & Independence 1343 Chapter 01  An Introduction to Business Statistics 137. At a certain university, 30% of the students major in zoology. Of the students majoring
in zoology, 60% are males. Of all the students at the university, 70% are males.
What percentage of the students are males majoring in zoology?
A. 60%
B. 42%
C. 12%
D. 18%
E. 70% AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Probability & Intersection 138. At a certain university, 30% of the students major in zoology. Of the students majoring
in zoology, 60% are males. Of all the students at the university, 70% are males.
What is the probability that one randomly selected student is a male or is majoring in
zoology?
A. 1.00
B. 0.60
C. 0.21
D. 0.18
E. 0.82
(.30) + (.70)(.18) = .82 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Probability & Union 1344 Chapter 01  An Introduction to Business Statistics 139. At a certain university, 30% of the students major in zoology. Of the students majoring
in zoology, 60% are males. Of all the students at the university, 70% are males.
What proportions of the males are majoring in zoology?
A. .26
B. .18
C. .21
D. .86
E. .60
P(ZM) = .18/.70 = .257 AACSB: Analytical Studies
Bloom's: Application
Difficulty: Hard
Topic: Probability & Conditional 140. At a certain university, 30% of the students major in zoology. Of the students majoring
in zoology, 60% are males. Of all the students at the university, 70% are males.
Are the events "male" and "majoring in zoology" independent?
A. Yes, independent
B. No, not independent
P(MZ) ≠ P(M) AACSB: Analytical Studies
Bloom's: Analysis
Difficulty: Hard
Topic: Probability 1345 Chapter 01  An Introduction to Business Statistics 141. An advertising campaign is being developed to promote a new bookstore opening in the
newest mall development. To develop an appropriate mailing list it has been decided to
purchase lists of credit card holders from MasterCard and American Express. Combining the
lists they find the following: 40% of the people on the list have only a MasterCard and 10%
have only an American Express card. Another 20% hold both MasterCard and American
Express. Finally, 30% of th...
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This document was uploaded on 01/20/2014.
 Winter '14

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