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19. In an office, calls arrive at a PABX at the rate of 24 per hour during office hours. How much time is expected to elapse before the first call arrives at the exchange after the ofice opens in the morning?

19. In an office, calls arrive at a PABX at the rate of 24 per hour during office hours. How much time is expected to elapse before the first call arrives at the exchange after the ofice opens in the morning?

EBK ELECTRICAL WIRING RESIDENTIAL
EBK ELECTRICAL WIRING RESIDENTIAL
19th Edition
ISBN:9781337516549
Author:Simmons
Publisher:Simmons
Chapter27: Service-entrance Equipment
Section: Chapter Questions
Problem 1R: Define the Service Point. ______________
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19. In an office, calls arrive at a PABX at the rate of 24 per hour during office hours. How
Transcribed Image Text:19. In an office, calls arrive at a PABX at the rate of 24 per hour during office hours. How
much time is expected to elapse before the first call arrives at the exchange after the ofice opens in the morning?
Transcribed Image Text:much time is expected to elapse before the first call arrives at the exchange after the ofice opens in the morning?
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