3401%20Unit%203%20Practice

# 3401%20Unit%203%20Practice - ECO 3401 Unit 3 Practice Exam...

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Solve the problem. 6) A poll is conducted in a U.S. city to determine voting preferences prior to a presidential election. The following probabilities were obtained from the relative frequencies: P(D) = 0.51, P(M) = 0.48, P(M . D) = 0.36 where M represents male and D represents a person who plans to vote Democrat. Find P(M 1 D). 6) A) 0.63 B) 0.78 C) 0.71 D) 0.49 7) 44% of a store's computers come from factory A and the remainder come from factory B. 2% of computers from factory A are defective while 4% of computers from factory B are defective. If one of the store's computers is selected at random, what is the probability that it is defective and from factory A? 7) A) 0.009 B) 0.98 C) 0.980 D) 0.431 Use the given table to find the indicated probability. 8) People in a survey were given three choices of soft drinks and asked to choose one favorite. The following table shows the results. cola
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## This note was uploaded on 01/12/2012 for the course ECO 3401 taught by Professor Staff during the Fall '08 term at University of Central Florida.

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3401%20Unit%203%20Practice - ECO 3401 Unit 3 Practice Exam...

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