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Quiz2 Sp 05 KEY

Quiz2 Sp 05 KEY - ECON 2843 Quiz 2 Spring 2005 Name ID KEY...

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ECON 2843 Name KEY Quiz 2 Spring 2005 ID # Students must show all work on problems that involve calculation. Questions 1 - 3 refer to the following table, which gives the joint probability distribution for workers and shifts at Flex Furniture Company. The company has decided to conduct random drug testing. Shift 1 2 3 Total Worker Male .20 .15 Female .24 .57 Total .25 .32 1. If a female is selected for testing, what is the probability that she will be a shift 2 worker? a. .15 b. .28 c. .35 d. .49 * e. .65 2. What is the probability that a worker will NOT work on shift 1? a. .15 b. .25 c. .35 d. .68 e. .75 * 3. The primary goal of NCAA division 1 basketball teams is to earn a place in the Final 4 and participate in March Madness. How many ways are there to obtain the Final 4 from the field of 64 teams who will enter the tournament? 635,376 1

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Questions 4 – 7 refer to the following. An Econ 2843 course consists of sophomores and juniors. Ten percent of the students who take Econ 2842 fail the course. Among those students who pass, 25% are sophomores. 67.5% of the
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Quiz2 Sp 05 KEY - ECON 2843 Quiz 2 Spring 2005 Name ID KEY...

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