Two days with no takers forces me to make the weather math problem easier.  I have eliminated one of the choices, but I’m going to punish you with heat today!

According to the National Weather Service there is a 90% chance of rain today, an 80% chance of rain on Thursday, and a 50% chance of rain on Friday.  What is the probability that it will rain on all 3 days?

• 36%
• 50%
• 73.3%

Here is the official outlook.