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Unformatted text preview: Name: _____________________________ Quiz #1 X is the number of patients per month that get an infection. The probability mass function of X is as follows: p(x) = .65 x = 0 = .15 x = 1 = .12 x = 2 = .08 x = 3 What is the probability that at least one patient gets an infection? P(X > 1) = .15 + .12 + .08 = .35 What is the probability that fewer than 2 patients get an infection? P(X < 2) = .65+ .15 = .80 IEE 380 Summer 2009 Name: _____________________________ Quiz #1 Y is the number of patients per month that get an infection. The probability mass function of Y is as follows: p(y) = .45 y = 0 = .25 y = 1 = .23 y = 2 = .07 y = 3 What is the probability that at least two patients get an infection? P(Y > 2) = .23 + .07 = .30 What is the probability that fewer than one patient gets an infection? P(Y < 1) = .45...
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 Summer '09
 chattin
 Probability mass function, 2 bars, IEE, John Browning, 3 bars

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