Mark and Rene have a 1:00pm tee time to play golf today. There is a 0.8 probability that Mark will make it. There is a 0.5 probability that Rene will...

Mark and Rene have a 1:00pm tee time to play golf today. There is a 0.8 probability that Mark will make it. There is a 0.5 probability that Rene will make the tee time. If Mark makes the tee time, then there is a 0.8 chance that Rene will then make the tee time. What is the probability that Rene will make the tee time but Mark will not?