An automobile insurance company Age group Proportion of Accident has determined the accident rate total Insured rate (probability of having at least one Under 21 0.05 0.08 accident during a year) for various 21-30 0.10 0.04 age groups (see Table). Suppose that a policyholder calls in to report 31-40 0.25 0.04 an accident. What is the probability 41-50 0.30 0.025 that he or she is over 60? 51-60 0.20 0.025 Over 60 0.10 0.04