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Unformatted text preview: Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Let the random variable Z follow a standard normal distribution. Find P (0 < Z < 0.57). A) 0.2157 B) 0.7843 C) 0.7157 D) 0.2843 1) 2) Let the random variable Z follow a standard normal distribution. Find P (- 2.21 < Z < 0). A) 0.0136 B) 0.9864 C) 0.4864 D) 0.5136 2) 3) Investment A has an expected return of 7.8% with a standard deviation of 2%. Investment B has an expected return of 7.2% with a standard deviation of 3.1%. Which stock is more likely to have a return greater than 10%? A) Stock A B) Stock B C) The probability is the same for both A and B . D) Unable to determine. 3) 4) Let the random variable Z follow a standard normal distribution. Find P (- 1.33 < Z < 0.78). A) 0.3095 B) 0.2823 C) 0.2177 D) 0.6905 4) THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: You have recently joined a country club. The number of times you expect to play golf in a month is represented by a random variable with a mean of 10 and a standard deviation of 2.2. Assume you pay monthly membership fees of $500 per month and pay an additional $50 per round of golf....
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This note was uploaded on 04/07/2012 for the course STATS V31.0018.0 taught by Professor Thom during the Spring '10 term at NYU.
- Spring '10