here are two highways from City A to City B. Route 1 is on flat terrain, whereas Route 2 is a scenic route that goes through mountainous terrain. During severe winter seasons, one or both routes may be closed to traffic because of heavy snowfalls. Route 2 is obviously more likely to be closed than Route 1 during the winter months. The condition of Route 1 during a severe storm may depend on whether or not Route 2 is open to traffic. Suppose, during a severe storm, the probabilities that the routes will be open are p(R1)=0.75, p(R2)=0.50, p(R1R2)=0.40 1. If Route 2 is open during a snow storm, find the prob. that Route 1 is also open. 2. If Route 2 is closed during a severe snow storm, find the probability that Route 1 is also cl
There are two highways from City A to City B. Route 1 is on flat terrain, whereas
Route 2 is a scenic route that goes through mountainous terrain. During severe
winter seasons, one or both routes may be closed to traffic because of heavy
snowfalls. Route 2 is obviously more likely to be closed than Route 1 during the
winter months. The condition of Route 1 during a severe storm may depend on
whether or not Route 2 is open to traffic.
Suppose, during a severe storm, the probabilities that the
routes will be open are p(R1)=0.75, p(R2)=0.50, p(R1R2)=0.40
1. If Route 2 is open during a snow storm, find the prob.
that Route 1 is also open.
2. If Route 2 is closed during a severe snow storm, find the
probability that Route 1 is also closed.
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