9. In which of the following discrete distribution does the probability of a success vary from one trial to the next? a. All of these. b. Poison c. Hypergeometric d. Binomial 10. Affirmative action commitments by many organizations have led to an increase in the number of women in executive positions. Satellite Office Systems has vacancies for two executives that it will fill from among five women and six men. What is the probability that at least one woman is selected? a. = 2 over 11 x 1 over 10 b. .4545 c. 1-0.272 d. 0.272.