Using DMV records, a state recorded the age range and gender of 95,329 licensed

Question

Using DMV records, a state recorded the age range and gender of 95,329 licensed drivers in the state. The observed frequencies are shown in the table below: Age Male Female 20-29 8651 8798 30-39 8832 9215 Under 20 4702 4565 40-49 9256 10,218 50-59 8268 9335 Over 60 6167 7322 Use the data collected to answer the following (round all percentages to two decimal places): a. What percentage of all drivers are in the age range 50-59? b. What percentage of all drivers are male? c. In the youngest age group, 00 were females. In the oldest age group 00 were females. Based on these percentages, it seems that as age increases, the percentage of female drivers does what? stays approximately the same increases decreases Points possible: 5

Explanation / Answer

a) Percentage of drivers that are in the age range 50-59 = (8268+9335)x100/95329

= 18.46%

b) Percentage fo drivers that are males = (4702+8651+8832+9256+8268+6167)x100/95329

= 48.12%

c) In the youngest group, 4565x100/(4702+4565) = 49.26% were females. In the oldest age group, 7322x100/(6167+7322) = 54.28% were females. based on the percentages, it seems that as age increases, the percentage of female drivers increases.

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