摘要：A new continuous distribution model is introduced, joining triangular
and exponential features, respectively on the left and right side of a
hinge point. The cumulative distribution function is derived, as well as the
first three moments. Expected values and the Pearson index of skewness are
tabulated. A possible step-by-step approach to parameter estimation is outlined.
An application to Italian geographical data is given, referring to a set of
municipalities classified by population, showing a very satisfactory goodness
of fit.
关键词：Triangular Distribution, Exponential Distribution, Skewness, Maximum
Likelihood Estimation.
