In the following probability distribution, the random variable X represents the number of marriages an individual aged 15 years or older has been involved in. Complete parts (a) through (f). x | o | 1 | 2 | 3 | 4 | 5 o P(x) | 0301 | 0530 | 0.131 | 0.031 | 0.005 | 0.002 (a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because the sum of the probabilities is and each probability is v (Type an integer or a decimal. Do not round.)