1. Given two events A and B. If n(A|B) = 0 then the events must be dependent events. True or False

2. Two dice are rolled and the up faces are summed. The event of rolling the first die and rolling the second die are dependent events.

a.True.

b.False.

3. The up surfaces of two dice are summed and the following two events are defined.

A: {The sum of the numbers showing is even}

B: {The sum of the numbers showing is 6, 10, or 11}

The probability of observing A or B is: