2. The following frequency distribution gives the age distribution of drivers who were at fault in auto accidents during a one-week period in Georgetown. Age (X years) Frequency 18 - 20 2 21 - 30 5 31 - 40 15 41 - 50 20 51 - 60 61 – 70 10 2 a) Find the mean and standard deviation of the age of the drivers. b) What percentage of the drivers are between 35 and 45 years old?

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2. The following frequency distribution gives the age distribution of drivers who
were at fault in auto accidents during a one-week period in Georgetown.
Age (X years)
Frequency
18 - 20
2
21 - 30
5
31 - 40
15
41 - 50
20
51 - 60
61 – 70
10
2
a) Find the mean and standard deviation of the age of the drivers.
b) What percentage of the drivers are between 35 and 45 years old?
Transcribed Image Text:2. The following frequency distribution gives the age distribution of drivers who were at fault in auto accidents during a one-week period in Georgetown. Age (X years) Frequency 18 - 20 2 21 - 30 5 31 - 40 15 41 - 50 20 51 - 60 61 – 70 10 2 a) Find the mean and standard deviation of the age of the drivers. b) What percentage of the drivers are between 35 and 45 years old?
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