Home /
Expert Answers /
Statistics and Probability /
a-production-ficility-contains-two-machines-that-are-used-to-rework-items-that-are-initially-defect-pa625
(Solved): A production ficility contains two machines that are used to rework items that are initially defect ...
A production ficility contains two machines that are used to rework items that are initially defective. Let be the number of hours that the first machine is in use, and let be the number of hours that the second machine is in use, on a randomly chosen day. Assume that and have joint probability density function given by: Given and
Expert Answer
To find ^2(x) and ^2(y), we need to calculate the variances of X and Y respectively. The variance is defined as the square of the standard deviation.So our target will to calculate variances of X and Y respectively