Suppose you went trick-or-treating (as an adult) and were able to nabtotal candies,ofwhich are kit-kats. The following two parts should be treated separately- only the information above is common to both.

(a) Your responsible parent says you can only eat of them tonight. You reach in and randomly grab of them. Let be the number of kit-kats you grabbed. What is(=)for valid values of ?

(b) You eat candies one at a time, randomly without looking into the bag, and decide to stop when you've eaten kit-kats. Letbe the total number of candies you ate, up to and including the time you ate your -th kit-kat. What is(=)for valid values of ?