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A 005 b 010 c 030 d 017 e 050 aacsb analytical

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Unformatted text preview: 0.98 B. 0.95 C. 0.75 D. 0.96 E. 0.50 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability 72. An urn contains five white, three red, and four black balls. Three are drawn at random without replacement. What is the probability that no ball is red? A. 0.7500 B. 0.0156 C. 0.2917 D. 0.4219 E. 0.3818 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Probability 1-307 Chapter 01 - An Introduction to Business Statistics 73. The probability of event A occurring given that event B has already occurred is 0.61. The probability of both events occurring is 0.5. What is the probability of event B occurring? A. 0.305 B. 0.195 C. 0.390 D. 0.820 E. 0.500 P(A|B) = p(A∩B)/P(A|B) = .5/.61 = 0.81967 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability & Conditional 74. What is the probability that any two people chosen at random were born on the same day of the week? A. 1/7 B. 1/49 C. 2/7 D. 2/49 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Probability & Independence 75. A letter is drawn from the alphabet of 26 letters. What is the probability that the letter drawn is a vowel? A. 5/26 B. 1/26 C. 4/26 D. 21/26 AACSB: Analytical Studies Bloom's: Application Difficulty: Easy Topic: Probability 1-308 Chapter 01 - An Introduction to Business Statistics 76. How many times must a die be tossed if the expected number of ones is five? A. 5 B. 30 C. 35 D. 6 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability 77. Which of the following are properties of a valid discrete probability distribution? A. p(X) 0, for all X B. ∑p(X) = 1 C. A only D. B only E. A and B AACSB: Analytical Studies Bloom's: Knowledge Difficulty: Hard Topic: Probability & Independence 78. If A and B are independent events, P(A) = .2, and P(B) = .7, determine P(A A. 0.90 B. 0.14 C. 0.76 D. 0.50 E. 0.24 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability & Independence 1-309 B) Chapter 01 - An Introduction to Business Statistics 79. If events A and B are mutually exclusive, calculate P(A|B). A. Can't be determined B. 0 C. 1 D. 0.50 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Probability & Mutual Exclusive Events 80. What is the probability of rolling a six with a fair die five times in a row? A. 1/6 B. 1/46,656 C. 1/7,776 D. 5/7,776 (1/6)5 = 1/7,776 AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Probability & Independence 81. If a product is made using five individual components, and P(product meets specifications) = P(E) = .98, what is the probability of an individual component meeting specifications assuming that this probability is the same for all five components? A. 0.98 B. 0.996 C. 0.004 D. 0.02 E. 0.904 P(E)5 = AACSB: Analytical Studies Bloom's: Application Difficulty: Hard Topic: Probability & Independence 1-310 Chapter 01 - An Introduction to Business Statistics 82. If P(A|B) = .2 and P(B) = .8, determine the intersection of event A and B. A. 0.20 B. 1.0 C. 0.25 D. 0.16 E. 0.60 (.2)(.8) = .16 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability & Conditional 83. If P(A A. 0.6 B. 0.3 C. 0.5 D. 0.27 E. 0.33 B) = .3 and P(A|B) = .9, find P(B). AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability 1-311 Chapter 01 - An Introduction to Business Statistics 84. Employees of a local university have been classified according to gender and job type. If an employee is selected at random what is the probability that the employee is male? A. .667 B. .367 C. .333 D. .500 E. .917 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability 1-312 Chapter 01 - An Introduction to Business Statistics 85. Employees of a local university have been classified according to gender and job type. If an employee is selected at random what is the probability that the employee is male and salaried staff? A. .15 B. .10 C. .38 D. .50 E. .85 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability & Intersection 1-313 Chapter 01 - An Introduction to Business Statistics 86. Employees of a local university have been classified according to gender and job type. If an employee is selected at random what is the probability that the employee is female given that the employee is a salaried member of staff? A. .167 B. .500 C. .625 D. 267 E. .375 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability 1-314 Chapter 01 - An Introduction to Business Statistics 87. Employees of a local university have been classified according to gender and job type. If an employee is selected at random what is the probability that the employee is female or works as a member of the faculty? A. 0.73 B. 0.08 C. 0.33 D. 0.70 E. 0.05 AACSB: Analytical Studies Bloom's: Application Difficulty: Medium Topic: Probability &am...
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This document was uploaded on 01/20/2014.

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