__Figure 22: Combining Probability Distributions__

This figure is a visual depiction of the process
by which the probability ranges for forecast variables are combined using Monte Carlo analysis which results in a central forecast. In the figure, probability
ranges for four hypothetical variables (number of elements per facility,
incremental price per element, percentage of elements where construction is
structurally impracticable, and percentage of elements with disproportionate
costs) are combined using Monte Carlo analysis to come up with a central
expected value and probability range for an annual capital cost per hypothetical
element.