EXERCISES 29.13 1 A service engineer receives on average an emergency call every 3 hours. If the time between calls follows an exponential distribution, calculate the probability that the time from one emergency call to the next is (a) greater than 3 hours (b) less than 4.5 hours Solutions 1 (a) 0.3679 (b) 0.7769 2 (a) 0.3247 (b) 0.5831

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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[11 A service engineer receives on average an emergency call every 3 hours. If the time between calls follows an exponential distribution, calculate the probability that the time from one emergency call to the next is (a) greater than 3 hours (b) less than 4.5 hours 03679 (b) 0.7769 | 2 @ 03247 () 05831
EXERCISES 29.13
1 A service engineer receives on average an emergency
call every 3 hours. If the time between calls follows
an exponential distribution, calculate the probability
that the time from one emergency call to the next is
(a) greater than 3 hours
(b) less than 4.5 hours
Solutions
1 (a) 0.3679
(b) 0.7769
2 (a) 0.3247
(b) 0.5831
Transcribed Image Text:EXERCISES 29.13 1 A service engineer receives on average an emergency call every 3 hours. If the time between calls follows an exponential distribution, calculate the probability that the time from one emergency call to the next is (a) greater than 3 hours (b) less than 4.5 hours Solutions 1 (a) 0.3679 (b) 0.7769 2 (a) 0.3247 (b) 0.5831
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