how to determine the difference between methods of sampling in a graph what measure to use to evaluate the difference between the two methods? what measure measures performance of a method what is the difference between standard error and average deviation how to measure between-sample variance what is meant by the standard deviation how to compare two methods for variance testing what measures the variability between methods how to measure variance how to use error bars as a measure of performance when is variance tested statistical variance measures in graphs how to find variance when one method always outperforms the other how many times is method x better than method y how do you measure a method's performance when do you measure the between-sample variance of different methods? what is significant deviation based on what is the value of the standard deviation how to test for variance in data how to find the difference between the two methods