Q.4: Suppose we know that a receptionist receives an average of 12 phone calls per hour. a) What is the probability that he will receive at least two calls between 8 and 8:15 am. b) If the receptionist absents for 10 minutes what is the probability that no call has been lost.
Q.4: Suppose we know that a receptionist receives an average of 12 phone calls per hour. a) What is the probability that he will receive at least two calls between 8 and 8:15 am. b) If the receptionist absents for 10 minutes what is the probability that no call has been lost.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Q.4: Suppose we know that a receptionist receives an average of 12 phone calls per hour.
a) What is the probability that he will receive at least two calls between 8 and 8:15 am.
b) If the receptionist absents for 10 minutes what is the probability that no call has been lost.
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