(a) A lamp has two bulbs, each of a type with average lifetime 1000 hours. Assuming that...
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(a) A lamp has two bulbs, each of a type with average lifetime 1000 hours. Assuming that we can model the probability of failure of a bulb by an exponential density function with mean µ = 1000, find the probability that both of the lamp’s bulbs fail within 1000 hours.
(b) Another lamp has just one bulb of the same type as in part (a). If one bulb burns out and is replaced by a bulb of the same type, find the probability that the two bulbs fail within a total of 1000 hours.
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a The lifetime of each bulb has exponential density function ft fx y 1000 If X and Y are ...View the full answer
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