Consider the lengths of stay at a hospital's emergency department. Hours Count Percent 1 18 3.70 36 7.39 86 17.66 100 20.53 5 78 16.02 6 63 12.94 7 35 7.19 8 19 3.90 9 15 3.08 10 19 3.90 15 18 3.70 Assume that 5 persons independently arrive for service. Round your answers to four decimal places (e.g. 98.7654). (a) What is the probability that the length of stay of exactly 1 person is less than or equal to 4 hours? (b) What is the probability that exactly 2 people wait more than 4 hours? (c) What is the probability that at least 1 person waits more than 4 hours? 2 3 A.

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Consider the lengths of stay at a hospital's emergency department.
Hours Count Percent
1
18
3.70
36
7.39
86
17.66
100 20.53
5
78
16.02
6
63
12.94
7
35
7.19
8
19
3.90
9
15
3.08
10
19
3.90
15
18
3.70
Assume that 5 persons independently arrive for service. Round your answers to four decimal places (e.g. 98.7654).
(a) What is the probability that the length of stay of exactly 1 person is less than or equal to 4 hours?
(b) What is the probability that exactly 2 people wait more than 4 hours?
(c) What is the probability that at least 1 person waits more than 4 hours?
2
3
A.
Transcribed Image Text:Consider the lengths of stay at a hospital's emergency department. Hours Count Percent 1 18 3.70 36 7.39 86 17.66 100 20.53 5 78 16.02 6 63 12.94 7 35 7.19 8 19 3.90 9 15 3.08 10 19 3.90 15 18 3.70 Assume that 5 persons independently arrive for service. Round your answers to four decimal places (e.g. 98.7654). (a) What is the probability that the length of stay of exactly 1 person is less than or equal to 4 hours? (b) What is the probability that exactly 2 people wait more than 4 hours? (c) What is the probability that at least 1 person waits more than 4 hours? 2 3 A.
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