Answer:
Sampling bias.
Step-by-step explanation:
The type of bias involved in the given information is: Sampling bias.
Here some members of the intended population have lower probability of sampling. As we can see that group of people who had survived car accidents in which they had not worn seat belts reported that seat belts would not have helped them, so its a non random sampling of population in which all factors and instances may not have been included.
