you roll two dice simultaneously, what is the probability that their sum is 3? (a) 1/18 (b) 1/9 (c) 1/6 (d) 1/4 (e) None of the above

How would you find the answer for these questions?

Given probility A is that a dice will roll on and odd number, and probility B is that a dice will roll on a number less than 4. What is the probability of A given B.I know the answer is 2/3 but I don't know how to calculate that.

In Hawaii, the rate of motor vehicle theft is 860 thefts per 100,000 vehicles. A large parking structure in Honolulu has issued 589 parking permits. (a) What is the probability that none of the vehicles with a permit will eventually be stolen? (Round λ to 1 decimal place. Use 4 decimal places for your answer.) (b) What is the probability that at least one of the vehicles with a permit will eventually be stolen? (Use 4 decimal places.) (c) What is the probability that four or more vehicles with a permit will eventually be stolen? (Use 4 decimal places.)