The time between calls to a plumbing supply business is exponentially distributed with a mean time...

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The time between calls to a plumbing supply business is exponentially distributed with a mean time between calls of 5-minutes. A) What is the probability that at least one call arrives within a 10-minute interval? B) What is the probability that at least one call arrives within 8 and 16 minutes after opening?

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Answer 1

Answer #1

(y dD 2. é唇 --e+ e 5 5 lio = 0.1353 on cal witin = 1-0.1353 /6 in b. part substract this resultent probability from 1 now you will get your desired probability. Thank you.

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Answer 2

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