The answer is "a. kurtosis".
kurtosis is a statistical measure that is utilized to depict the conveyance. While skewness separates outrageous qualities in one versus the other tail, kurtosis measures extraordinary qualities in either tail. Disseminations with substantial kurtosis display tail information surpassing the tails of the ordinary conveyance (e.g., at least five standard deviations from the mean). Conveyances with low kurtosis show tail information that is for the most part less outrageous than the tails of the typical dispersion.
