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4. Twenty percent of all trucks undergoing a certain inspection will fail the inspection. Assume that 40 trucks are independently undergoing this inspection, one at

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4. Twenty percent of all trucks undergoing a certain inspection will fail the inspection. Assume that 40 trucks are independently undergoing this inspection, one at a time. The expected number of trucks who fail the inspection is: (a) 8 (6) 16 (c ) 20 (d) 40 O a Ob O c d

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