how is cost variance calculated in a systematic classification algorithm? average cost of hip replacement vs. a heart transplant how do you compare the two types of classifications to each other how many different types of hip replacement are there? how to compare the differences in the classification how is variance calculated and reported cost variances comparison how to compare two different categories of procedures how is patient variance determined in classification how does variance work in clustering why is the difference between a heart transplant and hip replacement? what is variance for meds what is the difference between group classification and cluster how to calculate the cost of a hip replacement what is a variance what is the variance for a classifier how can a classification be used to compare procedures why would a hospital classify a patient as a hip replacement how are cost variances measured why is it necessary to compare two separate procedures