Final answer:
The eligibility age for a probationary driver's license typically starts at 16 after completing driver education, but it can vary by state, with some allowing it as young as 15.
Step-by-step explanation:
The eligibility age for a probationary driver's license varies by state in the United States. Most commonly, after successfully completing driver education, teenagers can obtain a probationary license at the age of 16. However, this can vary, with some states allowing teens to get a probationary license at a younger age, typically 15, when certain criteria are met such as holding a learner's permit for a specific period and demonstrating responsible driving behavior.
The data provided suggests an interest in determining whether the average age at which teenagers obtain their drivers licenses is consistent nationally. Still, the legal driving age is set by state law and therefore can differ from state to state.