Pham-Gia, T.; Turkkan, N.; Duong, Q. P. - In: Statistics & Probability Letters 13 (1992) 5, pp. 373-381
The mean deviation about an arbitrary point a of a probability distribution, [delta]a(X) = E(vb;X - avb;), is a measure of dispersion seldom encountered in statistical applications. However, when this point is taken to be the mean or the median, the mean deviation has a meaningful interpretation...