Define the assumptions using Crystal Ball The assumption cel
Define the assumptions using Crystal Ball. The assumption cells are input cells that contain values we are unsure of; the independent variable of the problem we are trying to solve. The cell must contain simple numeric values, no formulas or text.
Solution
To define an assumption:
Review About Assumptions and Probability Distributions.
Determine the most appropriate probability distribution for each uncertain variable:
List everything you know about the conditions surrounding this variable.
Review the descriptions of the probability distributions in Selecting Probability Distributions.
Consider using Crystal Ball’s distribution fitting feature, described in Fitting Distributions to Historical Data.
Select the distribution that characterizes the variable.
Enter the assumption as described in the next section, Entering Assumptions.
