The time between calls to a plumbing supply business is exponentially distributed with a mean time between calls of 14 minutes. (a) What is the probability that there are no calls within a 30-minute interval? (Round your answer to 4 decimal places.) (b) What is the probability that at least one call arrives within a 10-minute interval? (Round your answer to 4 decimal places.) (c) What is the probability that the first call arrives within 5 and 10 minutes after opening? (Round your answer to 4 decimal places.)
The time between calls to a plumbing supply business is exponentially distributed with a mean time between calls of 14 minutes. (a) What is the probability that there are no calls within a 30-minute interval? (Round your answer to 4 decimal places.) (b) What is the probability that at least one call arrives within a 10-minute interval? (Round your answer to 4 decimal places.) (c) What is the probability that the first call arrives within 5 and 10 minutes after opening? (Round your answer to 4 decimal places.)
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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![The time between calls to a plumbing supply business is exponentially distributed with a mean time between calls of 14 minutes.
(a) What is the probability that there are no calls within a 30-minute interval?
(Round your answer to 4 decimal places.)
(b) What is the probability that at least one call arrives within a 10-minute interval?
(Round your answer to 4 decimal places.)
(c) What is the probability that the first call arrives within 5 and 10 minutes after opening?
(Round your answer to 4 decimal places.)
(d) Determine the length of an interval of time such that the probability of at least one call in the interval is 0.90.
minutes (Round your answer to 2 decimal places.)
Statistical Tables and Charts](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbbba0909-7b4f-4e80-8e24-06dfda2d061e%2Fe64cd74d-0dfc-4caa-9973-908adf1377d8%2F40u384h_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The time between calls to a plumbing supply business is exponentially distributed with a mean time between calls of 14 minutes.
(a) What is the probability that there are no calls within a 30-minute interval?
(Round your answer to 4 decimal places.)
(b) What is the probability that at least one call arrives within a 10-minute interval?
(Round your answer to 4 decimal places.)
(c) What is the probability that the first call arrives within 5 and 10 minutes after opening?
(Round your answer to 4 decimal places.)
(d) Determine the length of an interval of time such that the probability of at least one call in the interval is 0.90.
minutes (Round your answer to 2 decimal places.)
Statistical Tables and Charts
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