Quadratic Mean:
The quadratic mean is a special case of the power mean statistics 
, corresponding to the value 
of the parameter. The quadratic mean is a synonym of root mean square .
The quadratic mean is used as a measure of “effective magnitude” of a set of non-negative values. This measure is scale invariant but not shift invariant .
See also: mean values (comparison) and the online short course Basic Concepts in Probability and Statistics
Planning on taking an introductory statistics course, but not sure if you need to start at the beginning? Review the course description for each of our introductory statistics courses and estimate which best matches your level, then take the self test for that course. If you get all or almost all the questions correct, move on and take the next test.
Read up on our latest blogs
Learn about our certificate programs
Find the right course for you
Our mentors and academic advisors are standing by to help guide you towards the courses or program that makes the most sense for you and your goals.
300 W Main St STE 301, Charlottesville, VA 22903
