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Exam 5: A Survey of Probability Concepts

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Question 61

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A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows. -What is the probability that the first person selected is a supervisor and in management?

A) 0.00
B) 0.06
C) 0.15
D) 0.21

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Question 62

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A probability of 0.0 is assigned to an event that is certain not to occur.

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Question 63

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A group of employees of Unique Services will be surveyed about a new pension plan. In-depth interviews with each employee selected in the sample will be conducted. The employees are classified as follows. -What is the probability that the first person selected is either in maintenance or in secretarial?

To apply the special rule of addition,what must be true about the events? __________

Six basic colors are used in decorating a new condominium.They are applied to a unit in groups of four colors.One unit might have gold as the principal color,blue as a complementary color,red as the accent color and touches of white.Another unit might have blue as the principal color,white as the complimentary color,gold as the accent color and touches of red.If repetitions are permitted,how many different units can be decorated?

A lamp manufacturer has developed five lamp bases and four lampshades that could be used together.How many different arrangements of base and shade can be offered?