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{{Wikify|date=January 2009}}{{Unreferenced|date=January 2009}}
The Three Point Estimation technique is based on statistical methods, and in particular, the Normal distribution. Three Point Estimation is the preferred estimation technique for IS projects. In Three Point Estimation we produce three figures for every estimate:
a = the best case estimate<br />
m = the most likely estimate<br />
b = the worst case estimate
These values are used to calculate an E value for the estimate and a Standard Deviation (SD) where:
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