Marie is getting married tomorrow, at an outdoor ceremony in the desert. In recent years, it has rained only 5 days each year. Unfortunately, the weatherman has predicted rain for tomorrow. When it actually rains, the weatherman correctly forecasts rain 90% of the time. When it doesn't rain, he incorrectly forecasts rain 10% of the time. What is the probability that it will rain on the day of Marie's wedding?

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Answers

2014-01-12T14:31:06+08:00
90%
Since it will rain tomorrow
And the weatherman correctly forecasts 90% of  the time when it rains
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