If the weather report says that there’s an 80% chance of sunshine on Saturday, your wedding day, does that mean it won’t rain? One way to look at a prediction of 80% sunshine is that it’s a tug of war between eight people pulling for the sun and only two people pulling for rain. Of course the sun is going to win. That’s not what’s happening. It also doesn’t mean that there’s a 100% chance it will rain 80% of the day this Saturday. If the meteorologists have done their job well, what they’re saying is that for every 100 Saturdays like this one, in this location, it’s quite likely that it will
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