The probability is 1.
At any given time it is raining somewhere on the planet, so it is a certainty that it is raining on 1 November.
Chat with our AI personalities
2:3
It is 0.5*0.5 = 0.25
If I do not take my umbrella, then its not raining. If it is not raining, then I won't take your umbrella.
Select 2 cards, do not put the 1st back in the deck. This is dependent probability. The outcome of drawing the 2nd card depends on the 1st card drawn. Select a card, look at it and put it back in the deck. Select a 2nd card. These are independent of each other. One does not change the probability for selecting the 2nd.
if i do not take my umbrella, then it is not raining