A committee of size k is chosen from a group of n women and m men. All possible committees of size k are equally likely. Let X and Y be the numbers of women and men on the committee, respectively. (a) Find the joint PMF of X and Y . Be sure to specify the support. (b) Find the marginal PMF of X in two dierent ways: by doing a computation using the joint PMF, and using a story. (c) Find the conditional PMF of Y given that X = x.

Sharon Stambouli HAS3111 Fall 2016 Discussion #2 1. In broad terms, financing includes the concepts of insurance, payment, and financing itself. It enables people to obtain health insurance. Providers rely on their patients insurance services to pay, to an extent, for the services that they deliver. The payment function determines reimbursement and undertakes the actual payment for services received by the person insured. The biggest impact of financing is determining access to services of health care, and therefore the demand for healthcare is related to the finances. Financing influences also supply factors such as the amount of healthcare available. It affects the total expenditures of a delivery system. Financing