someone please help me out with those two questions

1. (5 pts) Clearly define the sample space and then find the probability values for the number of males in a group of 9 people. 2. (10 pts) At work employees play a game called secret santa. Instead of drawing names from a hat, they all sit at random in a circle and give a gift to the person sitting to their right or sitting to their left with 1/2-1/2 probalility. Find the expectation of the number of peo- ple who end up without a present if, at work there are 240 people who participate of the game