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- If the modeler has been unable to find a theoretical
distribution that provides a good model for the input data, it may be
necessary to use the empirical distribution of the data.
- A typical way of resolving this difficult is through ``curve
- Steps involved: (see Exmaple 9.2 on page 328)
- Collect empirical data and group them accordingly.
- Tabulate the frequency and cumulative frequency.
- Now assume the value of cumulative frequency as a
function of the empirical data, i.e. F(x) = r
- Establish a relation between x and r using
for each of the intervals.
- Example 9.3 on page 332: note that in this example, five
response time are used which are all distinct. If there are values are
the same, or if the number of samples are large, we can certainly
group them in the different ways.