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Mathematics, 07.03.2020 04:22 oscaralan01

Before a computer is assembled, its motherboard goes through a special inspection. Assume only 85% of motherboards pass this inspection.

(a) What is the probability that at least 13 of the next 15 motherboards pass inspection?
(b) On the average, how many motherboards should be inspected until a motherboard that passes inspection is found?

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