Isles (or iles) of CFA: Quartiles, Quintiles, Deciles, Percentiles

All of the isles (or iles) of CFA fall under the broad heading of quantiles (or fractiles); values that divide a data set into a certain number of subsets with the same number of data points in each subset.  For example, the median divides a data set into two subsets: half of the values are […]