Final answer:
The risk of a fatal collision for drivers under 18 is higher than that of the average driver but the question lacks specific statistics to quantify this risk.
Step-by-step explanation:
If you are under 18 years old, your risk of a fatal collision is significantly higher than that of the "Average" driver. Unfortunately, the exact multiple was not provided in the question or the reference information. As younger drivers typically have less experience, they are generally more prone to errors that can lead to both fatal and injury collisions. While specific statistics can vary by region and over time, it is clear that younger drivers face increased risks on the road.
For the risk of an injury collision, the question does not provide specific figures, so we cannot accurately quantify the risk in comparison to the average driver's risk. However, generally speaking, less experienced or younger drivers tend to have a higher risk of being involved in collisions that result in injuries due to factors such as inexperience, risk-taking behaviors, and less developed decision-making skills while driving.