Pls help answer and explain as simple as possible:

1. A binomial random variable X has expected value 4/3 and variance 8/9. Find P(X > 2).

2. The number of accidents per day on a busy highway can be modelled using a Poisson random variable with = 3. Find the probability that exactly 2 accidents occur in a day, given that at least 1 accident occurs. Give your answer to 3 decimal places.