### Discrete Probability Distribution: Example Problems

a. Find the value of "a" in the following discrete probability distribution: x P(x) -2 a 0 0.35 2 0.25 b. Determine whether or not the following is a probability distribution. Give a reason for your answers. x P(x) 3 3/5 4 2/5 5 1/5 6 - 1/5 c. Determine whether or not the following is a probability distribut