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Math1313-Q11-S10-filled

Math1313-Q11-S10-filled - Print Test Page 1 of 5 PRINTABLE...

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PRINTABLE VERSION Quiz 11 Question 1 The probability distribution of a random variable X is given below. Given the mean Find the variance (Var(X)) and the standard deviation, respectively. a) [47.62, 6.90] b) [6.59, 2.57] c) [781.42, 27.95] d) [34.18, 5.85] e) [676.00, 26.00] f) None of the above. Question 2 The probability distribution of a random variable X is given below. Given the mean Find the variance (Var(X)) and the standard deviation, respectively. x 1 2 3 6 8 P(X=x) 9/32 3/16 3/32 5/16 1/8 n m l k j n m l k j n m l k j n m l k j n m l k j n m l k j x 1 4 5 6 10 P(X=x) 1/22 3/11 5/22 4/11 1/11 n m l k j n m l k j n m l k j Page 1 of 5 Print Test 4/21/2010 http://assessment.casa.uh.edu/Assessment/PrintTest.htm

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Question 3 A binomial experiment consists of four independent trials. The probability of success in each trial is 27/50. Find the probabilities of obtaining exactly 0 successes, 1 success, 2 successes, 3 successes, and 4 successes, respectively, in this experiment.
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