China Naming Network - Ziwei Dou Shu - ABCD Four people predict whether the weather will be rainy or sunny for the week
ABCD Four people predict whether the weather will be rainy or sunny for the week
The probability that it will rain, be sunny, or snow today is each x y z
x+y+z=1
The probability that it will be raining or sunny today is x+y=80%
It will rain or snow today x+z=80%
x=
y=
z=