why do we take the square root of a standard deviation why do you square the difference in standard deviations what does square the difference mean? what is the difference between a standard deviation and a square why do we square and take the absolute value instead of the standard deviation and get the standard deviation what is the square root of standard deviation why do we square the difference instead of the absolute value why take the absolute deviation in standard deviation what is the definition of sigma in math why square the difference and not take it from sdr what is the standard deviation? how to square a standard deviation square vs absolute standard deviation meaning why square the difference how is standard deviation measured which of the following is a square approach why sqrt the difference instead of standard deviation difference squared to standard deviation why is standard deviation squared why do we square the difference