Convert the distribution in Exercise 2.3 to a
a. Relative frequency distribution.
b. Cumulative frequency distribution showing “less than or within” frequencies.
Exercise 2.3
Age (Years) Licensed Drivers (Millions)
under 20............ 10.72
20–under 25......... 16.84
25–under 35......... 40.78
35–under 45......... 45.59
45–under 55......... 36.70
55–under 65......... 23.32
65 or over.......... 28.76