Vehicles indicates that the average age of licensed drivers is years. Assuming that the distribution of drivers' ages H = 45.7 years with a standard deviation of ở = 125 Information fre H = 45.7 years a %3D %3D is approximately normal, portion of licensed drivers are older than

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18. Information from the Department of Motor Vehicles
H = 45.7 years with a standard deviation of o = 125
years. Assuming that the distribution of drivers' ages
indicates that the average age of licensed drivers is
years with a standard deviation of
J = 125
%3D
that the distribution of drivers'
years. Assuming
is approximately normal,
a. What proportion of licensed drivers are older the
50 years old?
b. What proportion of licensed drivers are younger
than 30 years old?
ages
10
debit
Ban
Transcribed Image Text:18. Information from the Department of Motor Vehicles H = 45.7 years with a standard deviation of o = 125 years. Assuming that the distribution of drivers' ages indicates that the average age of licensed drivers is years with a standard deviation of J = 125 %3D that the distribution of drivers' years. Assuming is approximately normal, a. What proportion of licensed drivers are older the 50 years old? b. What proportion of licensed drivers are younger than 30 years old? ages 10 debit Ban
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