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When a machine is improperly adjusted it has probability 02

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When a machine is improperly adjusted, it has probability 0.2 of producing a defective item. Each day the machine is run until 5 defective items are produced. If this occurs, the machine is stopped and checked for adjustment.

a) What is the probabiliy that an improperly adjusted machine will produce 8 or more items before being stopped?

b) What is the average number of items an improperly adjusted machine will produce before being stopped?

Reference no: EM13615715

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