When a company plans a project, it will estimate the cost of the project before beginning. It may also estimate the amount of time it expects the project to take to complete. However, these estimates ...

Analysis of variance (ANOVA) is a statistical analysis tool that separates total variability found within a data set into two components: random and systematic factors.

Variance is a statistical calculation that numerically describes the amount of variation in a data set. If values in a data set wildly fluctuate, variance would be high and predictions based on the ...

Six Sigma and other efficiency seeking approaches can dramatically reduce variance and inefficiency in an organization. But if you’re not careful, innovation and growth may be swept away in the ...

The US health care system frequently focuses on reducing “unnecessary care variation” and with good reason. Recent literature places the cost of variability from best practices in care in the billions ...

Donald M. Berwick, MD, MPP, the former CMS administrator who is president emeritus and senior fellow at the Institute for Healthcare Improvement, discusses cost variation in cancer care found through ...

Animal breeding has traditionally focused on improving mean trait performance; however, contemporary research increasingly highlights the significance of genetic variation not only in trait means but ...

Fossil samples almost always accumulate on timescales much longer than the life spans of individual organisms. This time-averaging has the potential to inflate the variability of fossil samples ...