Chapter 4 Quiz - Chapter 4 Quiz

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Chapter 4 Quiz Let A be the event that a student is enrolled in an accounting course, and let S be the  event that a student is enrolled in a statistics course. It is known that 30% of all students  are enrolled in an accounting course and 40% of all students are enrolled in statistics.  Included in these numbers are 15% who are enrolled in both statistics and accounting.  A student is randomly selected, what is the probability that the student is enrolled in  either accounting or statistics or both? 0.55 0.70 0.90 0.15 0.85 Max Sandlin is exploring the characteristics of stock market investors. He found that  sixty percent of all investors have a net worth exceeding $1,000,000; 20% of all  investors use an online brokerage; and 10% of all investors a have net worth exceeding  $1,000,000 and use an online brokerage. An investor is selected randomly, and E is the  event "net worth exceeds $1,000,000" and O is the event "uses an online brokerage."  P(O U E) = _____________. 0.17 0.70 0.50 0.10 0.80 Max Sandlin is exploring the characteristics of stock market investors. He found that  sixty percent of all investors have a net worth exceeding $1,000,000; 20% of all  investors use an online brokerage; and 10% of all investors a have net worth exceeding  $1,000,000 and use an online brokerage. An investor is selected randomly, and E is the 
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event "net worth exceeds $1, 000, 000," and O is the event "uses an online brokerage."  P(O|E) = _____________. 0.70
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This note was uploaded on 07/25/2011 for the course DESI 3403 taught by Professor Black during the Fall '10 term at University of Houston.

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Chapter 4 Quiz - Chapter 4 Quiz

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