Posted by **Anonymous** on Tuesday, October 2, 2007 at 7:19pm.

This is a stats problem.

Twenty percent of all trucks undergoing a certain inspection will fail the inspection. Assume that trucks are independently undergoing this inspection, one at a time. The expected number of trucks inspected before a truck fails inspection is...?

I belive this is a geometric probability problem, but I don't know how to solve it. Please help.

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