Mr Hail, Miss rain and Mrs Snow all apply for a job as a park keeper. Whichever one gets the job will have to open the gates of the park at 5.30 am. If Mr Hail gets the job, he will only open the gates on time 50% of the time. If Miss rain gets the job she will only open the gates on time 40% of the time. If Mrs Snow gets the job she will always open the gates on time. Assume that Mr hail has a 40 % chance of getting the job, and that Miss rain and Miss Snow each have a 30 % chance of getting the job. What is the probability that the parks gates will be opened on time ? Question 39Select one: a. 0.6200 b. 0.3500 c. 0.2000 d. 0.3200   Refer to the question above. Using the same data, if the gates are opened on time, what is the probability that Mrs Snow got the job? Question 40Select one: a. 0.0857 b. 0.3429 c. 0.4839 d. 0.5061

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Mr Hail, Miss rain and Mrs Snow all apply for a job as a park keeper. Whichever one gets the job will have to open the gates of the park at 5.30 am. If Mr Hail gets the job, he will only open the gates on time 50% of the time. If Miss rain gets the job she will only open the gates on time 40% of the time. If Mrs Snow gets the job she will always open the gates on time. Assume that Mr hail has a 40 % chance of getting the job, and that Miss rain and Miss Snow each have a 30 % chance of getting the job. What is the probability that the parks gates will be opened on time ?
Question 39Select one:
a.
0.6200
b.
0.3500
c.
0.2000
d.
0.3200
 
Refer to the question above. Using the same data, if the gates are opened on time, what is the probability that Mrs Snow got the job?
Question 40Select one:
a.
0.0857
b.
0.3429
c.
0.4839
d.
0.5061
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