A couple are planning for their retirement. The chance that Arthur will survive for ten years is 0.79. The chance that Jenny will survive for ten years is 0.70. What is the chance that exactly one of them will survive for ten years?
If a person watches a certain TV daily evening news program on one evening, then the probability that the person watches that program the next evening is 0.7. However, if the person does not watch the program one evening, then the probability that the person watches the program the next evening is 0.2. If the person has 0.48 probability to watch the program on Monday, the probability that the person watches the program on Wednesday is
In Australia, 58% of the population are rugby fans. Among those who are rugby fans, 22% are also soccer fans. Among those who are not rugby fans, 32% are soccer fans. Julie is a soccer fan, and her probability of being a rugby fan is: