Everybody else might be afraid of a little rain, but use VW folks aren't! It's on rain or shine. When the bugs start float'n across the parking lot, we'll call it off and go swimming!
A 30% chance that it will rain means a 70% chance that it won't. Actually, on any given day at any given time it could rain . . . or not. So there is always a 50-50 chance it'll rain and a 50-50 chance it won't. Even with a 50% chance it doesn't rain more days than it does rain. And on most days it does rain, it doesn't rain all day, on most days the sun shines, it shines all day long. And that's on an average day that has a 50% chance of rain . . . at only 30%, we've got good weather in the bag. As a statistical engineer at work once told me, "torture the data long enough and it will tell you what you want to hear!"
