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1_Chap5Stats

# 1_Chap5Stats - Review Assessment Test Chapter 5 User...

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Review Assessment: Test Chapter 5 User Elizabeth S Knowles Submitted 2/20/08 8:02 AM Name Test Chapter 5 Status Completed Score 60 out of 80 points Time Elapsed 1 hours, 31 minutes, and 14 seconds out of 3 hours and 0 minutes allowed. Instructions Question 1 2 out of 2 points Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. n = 6, x = 3, p = Selected Answer: 0.0536 Correct Answer: 0.0536 Question 2 2 out of 2 points Solve the problem. Suppose you pay \$3.00 to roll a fair die with the understanding that you will get back \$5.00 for rolling a 3 or a 6, nothing otherwise. What is your expected value? Selected Answer: -\$1.33 Correct Answer: -\$1.33 Question 3 0 out of 2 points Solve the problem. Find the variance for the given probability distribution. Selected Answer: 7.43 Correct Answer: 2.46

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