你应该知道的事

YSK认为,大多数人都误解了 "下雨几率 "的实际含义;50%的下雨几率并不意味着那天有50%的机会会下雨。
YSK that most people misunderstand what “% chance of rain” actually means; 50% chance of rain doesn’t mean that there’s a 50% chance that it will rain that day.
from /r/YouShouldKnow