Response time is an important statistic for measuring the effectiveness of a fire department, and is measured as the difference between the time a fire station receives a call and the time the first piece of fire equipment leaves the station. The response times for fire departments in a large city are found to have an approximately Normal distribution, with a mean of 4.5 minutes and a standard deviation of 1.2 minutes. What percentage of fire station response times are under 3 minutes? Cind ths-

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S5
4.
TIME REVANING
02:10:57
Response time is an important statistic for measuring the effectiveness of a fire department, and is measured as the
difference between the time a fire station receives a call and the time the first piece of fire equipment leaves the
station. The response times for fire departments in a large city are found to have an approximately Normal
distribution, with a mean of 4.5 minutes and a standard deviation of 1.2 minutes. What percentage of fire station
response times are under 3 minutes?
Find the z-table here.
O10.56%
O 89.44%
O 93.32%
Mark this and return
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IIO
YA
%24
4.
9.
8.
n
!
Transcribed Image Text:*00 S5 4. TIME REVANING 02:10:57 Response time is an important statistic for measuring the effectiveness of a fire department, and is measured as the difference between the time a fire station receives a call and the time the first piece of fire equipment leaves the station. The response times for fire departments in a large city are found to have an approximately Normal distribution, with a mean of 4.5 minutes and a standard deviation of 1.2 minutes. What percentage of fire station response times are under 3 minutes? Find the z-table here. O10.56% O 89.44% O 93.32% Mark this and return Save and Exit Submit IIO YA %24 4. 9. 8. n !
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