An orthopedic physician's practice considers the number of errors in a bill and the number of...

 

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An orthopedic physician's practice considers the number of errors in a bill and the number of X- rays listed on the bill. There may or may not be a relationship between these random variables. Let the random variables X and Y denote the number of errors and the number of X-rays on a bill, respectively. Assume that the joint probability distribution of X and Y is defined by fxy (x, y) and it is given below, determine the covariance and correlation. Y 3.0.1278 0.034 2.0.1875 0.050 0.0125 BEE 1.0.210 0.056 0.014 0.225 0.060 1 2 0. 0.0085 0 0,015 X An orthopedic physician's practice considers the number of errors in a bill and the number of X- rays listed on the bill. There may or may not be a relationship between these random variables. Let the random variables X and Y denote the number of errors and the number of X-rays on a bill, respectively. Assume that the joint probability distribution of X and Y is defined by fxy (x, y) and it is given below, determine the covariance and correlation. Y 3.0.1278 0.034 2.0.1875 0.050 0.0125 BEE 1.0.210 0.056 0.014 0.225 0.060 1 2 0. 0.0085 0 0,015 X