1.) If you roll fair dice once, what is the probability that you will obtain:

A two on die 1 and a five on die 2?

A two and a five without regard to order?

A sum of seven?

2.)

A man and a woman decide to get married. Assume that the probability that each will have a specific blood group is as follows:

Blood Group O A B AB

Probability .50 .35 .10 .05

Assume that the blood group of one partner is independent of the other. What is the probability that:

The husband is not group AB?

The husband is group O and the wife group B?

Both are group A?