Example: : A computer is shipped with several identical parts.
A company that assembles computers is interested in the distribution
of the number of parts required. The computer
has at least one of the part and no more than 6. A production
supervisor estimates that most computers require two parts.
The only information we have is the range of the random variable
and its mode (the most likely number). A reasonable estimate
for the distribution of parts is the triangular distribution.
The distribution is computed at the left. The add-in has computed
the slopes that are shown as the first and last values of the
d=0.143 and e=0.057.
The mean and variance of this distribution are
respectively 3 and 2. The nonzero digits shown as the least
significant digits on the figure are due to numerical error.