We have an unfair die. When we roll the die, the probability that an even number shows up is twice the probability that an odd number shows up.
We define two events A and B as follows:
A = a number smaller than four shows up
B = an odd number shows up
1. Pr (B) =
a. 2/3 b. 5/9 c. 1/2 d. 1/3
2. Pr (An B)=
a. 2/9 b. 7/9 c. 1/9 d. 1/3
3. Pr (B)=
a. 1/2 b. 2/9 c. 1/3 d. 2/3
4. Pr (A)=
a. 1/3 b. 4/9 c. 1/9 d. 1/2
