Patients are given a drug treatment and then evaluated. Symptoms either improve, degrade, or remain the same
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Patients are given a drug treatment and then evaluated. Symptoms either improve, degrade, or remain the same with probabilities 0.4, 0.1, 0.5, respectively. Assume that four independent patients are treated and let X and Y denote the number of patients who improve or degrade. Are X and Y independent? Calculate the covariance and correlation between X and Y .
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Related Book For 
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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