(c) Find the probability that the number of patients entering the emergency room during a randomly selected 1-hour period is at most 2. (d) Find the mean number of patients that arrive in 1-hour period.
(c) Find the probability that the number of patients entering the emergency room during a randomly selected 1-hour period is at most 2. (d) Find the mean number of patients that arrive in 1-hour period.
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:(c) Find the probability that the number of patients entering the emergency room during a
randomly selected 1-hour period is at most 2.
(d) Find the mean number of patients that arrive in 1-hour period.
Transcribed Image Text:2. A review of emergency room records at the Dhaka Medical College Hospital was performed to
determine the probability distribution of the number of patients entering the emergency room
during a 1-hour period. The following table lists this probability distribution.
Patient's per hour:
Probability:
1
2
3
4
0.20 0.30 0.20 0.14 0.10 0.06
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