12. Based on an insurance company’s evaluation, with probability 0.85, Whitney is a safe driver, and with probability 0.15 she is not. Suppose that a safe driver avoids at-fault accidents in the next year with probability 0.87, and an unsafe driver avoids at-fault accidents in that period with probability 0.54. If next year Whitney gets involved in a car accident that is her fault, how should the insurance company revise the probability of Whitney being a safe driver?