Final answer:
The statement is false, as data indicates that head injuries, which are often a result of vehicle accidents, account for around 30 percent of injury-related deaths and are not the majority causes of teenage deaths.
Step-by-step explanation:
The statement that about 40 percent of all teenage deaths occur through vehicle crash injuries is false. According to the Centers for Disease Control and Prevention (2010), approximately 30 percent of all injury-related deaths in the United States are caused by head injuries, which often result from automobile and motorcycle accidents. These accidents are not the majority causes of teenage deaths. Additionally, data on accidental deaths from 1999 to 2014 indicate that there has been a shift where drug overdoses became a more common cause of accidental death compared to motor vehicle crashes. Therefore, the claim that 40 percent of teenage deaths are due to vehicle crashes is not supported by the statistical data available.