An actuary studied the likelihood that different types of drivers would be involved in at least one collision during any one-year period. The results of the study are: What is the probability that a driver is involved in a collision given that they are middle aged? What is the probability that a driver is involved in at least one collision? A person phones the insurance company to make a claim and therefore we can assume that they have been involved in a collision. What is the probability that they are a young adult