你應該知道的事

YSK認爲,大多數人都誤解了 "下雨機率 "的實際含義;50%的下雨機率並不意味着那天有50%的機會會下雨。
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