Using a Normal Model
The implications of normality reach deep into decision making. The fact that a normal model can describe the distribution of virtually any sum allows us to solve problems that would otherwise be intractable.
Weighing in Place of Counting
Manufacturing has become widely diversified. It’s rare to find a factory that makes all of the parts from raw materials and assembles the final product. The auto industry, for example, makes heavy use of distributed manufacturing: Various suppliers ship parts designed to specifications to the manufacturer for assembly. Many common parts are packaged by weight. If a shipment of parts to an assembly plant is supposed to include the 200 bolts needed to assemble 10 cars, chances are that no one ...
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