A technician services mailing machines at companies in the Phoenix area. Depending on the type of malfunction, the service call can take 1, 2, 3,
A technician services mailing machines at companies in the Phoenix area. Depending on the type of malfunction, the service call can take 1, 2, 3, or 4 hours. The different types of malfunctions occur at about the same frequency.
a. Develop a probability distribution for the duration of a service call.
b. Draw a graph of the probability distribution.
c. Show that your probability distribution satisfies the conditions required for a discrete probability function.
d. What is the probability a service call will take three hours?
e. A service call has just come in, but the type of malfunction is unknown. It is 3:00P.M and service technicians usually get off at 5:00 P.M. What is the probability the service technician will have to work overtime to fix the machine today?
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Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam
7th Edition
1305081595, 978-1305081598
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