Question

What is the difference between standard deviation and average deviation? Which calculation is more useful for determining if a data point can be omitted from a data set?

Answer 1

solution :

standard deviation :

an amount communicating by how much the individuals from a gathering vary from the mean an incentive for the gathering.

average or mean deviation :

The normal deviation of an arrangement of scores is figured by registering the mean and afterward particular separation between each score and that mean without respect to whether the score is above or beneath the mean. It is additionally called as normal total deviation

difernce between standard and average deviation :

The standard deviation is just the square base of the change. ... The normal deviation, additionally called the mean outright deviation, is another proportion of fluctuation. Be that as it may, normal deviation uses total qualities rather than squares to dodge the issue of negative contrasts among information and the mean.

standard deviation is more usefull for determing if a data point cn be omitted from dataset .