denotes how stretched or squeezed distribution is	dispersion
expected value	mean
is a numerical value separating the highter half of data sample from the lower half	median
it is the number that occurs most frequently	mode
shows how much variation or dispersion from the average exists	deviation
is any measure of the peakedness of the probability distribution	kurtosis
is any measure of the asymmetry of probability distribution	skewness
in the central value for probability distribution	central tendency