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Unformatted text preview: What is the probability they win 3 of the next 5 games? 7. [8] The probability that Rutgers wins a game is .7. What is the probability they win 30 or more of 45 games? 8. [8] The average GPA of a student who voted for Forrester is 3.5; the standard deviation is .7. What is the probability that the sample average GPA will exceed 3.8 from a sample of 40 students who vote for Forrester? 9. [8 The population mean time is 120 minutes and the population standard deviation is 13 minutes. What is the probability of a time greater than 125 minutes? 10. [10] A sample of 90 has a sample mean=75 and a sample standard deviation=8. Calculate a 95% confidence interval for the population mean. 11. [8] What is the expected value of X? X probability 17 0.1 33 0.3 41 0.3 45 0.2 55 0.1...
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This note was uploaded on 11/06/2010 for the course STATS 220:231 taught by Professor Vanderhoff during the Spring '10 term at Rutgers.
 Spring '10
 VANDERHOFF
 Statistics, Probability

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