1. a. If you draw a single card from a deck, it cannot be a red card and a black card. Why? [2]b. A personnel manager has received requisitions for one typist each from the Productiondepartment, Marketing Department, Human resource department and Research department.There are seven applicants available from these four positions may be filled. In how many waysfour typists selected from the eight applicants and assigned to the four different openings. [3]c. A class is made up of 25 boys and 15 girls. It is decided to distribute 5 tickets by lottery to 5students of the class. What is the probability that the tickets go to the 5 girls. [2]d. A piece of equipment will function only when all the three components A, B and Cworking. The probability of A failing during one year is 0.25, that of B failing is 0.01 and that offailing is 0.15. What is the probability that the equipment will fail before the end of the year? (3)

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1. a. If you draw a single card from a deck, it cannot be a red card and a black card. Why? [2]

ENGR.ECONOMIC ANALYSIS

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ISBN:9780190931919

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Chapter1: Making Economics Decisions

Section: Chapter Questions

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Question

1. a. If you draw a single card from a deck, it cannot be a red card and a black card. Why? [2]
b. A personnel manager has received requisitions for one typist each from the Production
department, Marketing Department, Human resource department and Research department.
There are seven applicants available from these four positions may be filled. In how many ways
four typists selected from the eight applicants and assigned to the four different openings. [3]
c. A class is made up of 25 boys and 15 girls. It is decided to distribute 5 tickets by lottery to 5
students of the class. What is the probability that the tickets go to the 5 girls. [2]
d. A piece of equipment will function only when all the three components A, B and C
working. The probability of A failing during one year is 0.25, that of B failing is 0.01 and that of
failing is 0.15. What is the probability that the equipment will fail before the end of the year? (3)

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