1. Problem Definition
A switchroom is one of the biggest non electrical components in a substation. Based on the information received on several tender submissions, a table which indicate the percentage of design work cost compare to total project cost is developed. The table is shown in Table 1.
To properly use this set of data for estimating purpose, one need to identify what type of probability distribution may fit with the data. This distribution later may be used to calculate the contingency fund.