A box contains 26 cards. Half of them are red, and labeled 1-13, the other half are blue and also labeled 1-13.

Round all probabilities to four decimal points:

1) If we pick a random card, what is the probability that it has a "6" on it?

2) If we pick a random card, what is the probability that is says "6" on it or that it is blue?

3)If we pick a random card, what is the probability that is says "6" on it and that it is blue?

4) If we pick two random cards (without replacement), what is the probability that at least one of them is blue?

5) If we pick 4 random cards (without replacement), what is the probability that all of them are red?