Patient response to a generic drug to control pain is scored on a 5-point scale, where a

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Patient response to a generic drug to control pain is scored on a 5-point scale, where a 3 indicates complete relief. Historically, the distribution of scores is 1 2 3 4 5 0.05 0.1 0.2 0.25 0.4 Two patients, assumed to be independent, are each scored.

(a) What is the probability mass function of the total score?

(b) What is the probability mass function of the average score?

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Applied Statistics And Probability For Engineers

ISBN: 9780470053041

5th Edition

Authors: Douglas C. Montgomery, George C. Runger

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