The square root of the variance is the standard deviation. Investopedia / Alex Dos Diaz In statistics, variance measures variability from the average or mean. It is calculated by taking the ...

CoV is a simple calculation to measure the variation in your process. Let’s see how to do the calculation, explore an industry application, and answer a few questions about CoV. CoV, also known ...

What’s up? When calculating disease rates, the variation in the mean is inversely proportional to the sample size, ergo, small counties display much greater variation than large counties.

Statistical Process Control (SPC) provides the means for the control of product quality and the reduction of process variation. To be successful you need to know how to collect data, understand the ...