0.20 + 0.80*0.80
Not neccessarily, there's a 20% chance it can rain.
There is an 80% or 0.80 chance that it will not rain on Saturday
No - 20% is 1/5. A 20% chance of something means that it will occur 1 time in 5 on average. 20% chance of rain means that when conditions are the way they are now, rain will fall 1 time in 5 or it may mean that rain will fall in 1/5 of the area covered by the forecast.
It means there is an 80 % chance it will rain and a 20% chance it wont. In other words, it means take your umbrella!
20% first day, 40% second day, Total percent of rain over the two days is (20+40)/2 = 30% per day
60% chance for Scattered Thunderstorms means there is a very likely chance that you will see thunderstorms scattered around throughout the day. A scattered thunderstorm means that one moment their maybe rain and thunder, the next moment it may be clear.Use this table for reference:0-20% Chance of Rain is: Very unlikely21-49% Chance of Rain is: Unlikely but should be expected50-75% Chance of Rain is: Likely and should be expected75+% Chance of Rain is: Very likely and should be expected.
The chair of the board of directors says, "There is a 50 percent chance this company will earn a profit, a 30 percent chance it will break even, and a 20 percent chance it will lose money next quarter".
10 percent.
IF probability of rain is X percent then probability of no rain is 100- X percent. For example if prob of rain is 80% prob of no rain is 20%
A weather forecast.
as at 13th July. overcast, 20% chance of rain, high temperature 17C low 15C wind NW 43k/ph. Forecast, same but with 80% chance of rain