In a 2000 census, The National Highway Traffic Safety Administration reported that, nationally, 2% of all traffic fatalities are bicycle deaths. The California Highway Patrol’s Statewide Integrated Traffic Records System reports that bicycle deaths account for 4% of the state’s traffic fatalities. Information from that report is outlined in the following table.

California Bicycle Fatalities and Injuries by Age Group, 2000 Age (yr) Bicycle Fatalities Bicycle Injuries Total Collisions 0 to 4 0 14 14 5 to 14 21 3,210 3,231 15 to 24 9 2,945 2,954 25 to 34 9 1,907 1,916 35 to 44 23 1,904 1,927 45 to 54 22 1,212 1,234 55 to 64 8 505 513 65 to 74 10 207 217 75 to 84 8 117 125 85 or over 3 22 25 Not stated 3 102 105 Total 116 12,145 12,261 Source: 2000 Statewide Integrated Traffic Records System

a. What percent of collisions were bicycle fatalities in California in 2000?

b. What percent of collisions resulted in bicycle injuries in California in 2000?

c. What percent of collisions involved someone from the 5- to 14-year age group?

d. What percent of bicycle injuries were incurred given there was interest in only the 35- to 44-

year age bracket?

e. What percent of bicycle fatalities involved someone from the 75- to 84-year age group?

f. What percent of the 15- to 24-year age group were involved in bicycle injuries?