suppose you are planning a trip to an outdoor music festival over the summer. These are 8 people you are thinking about inviting.They all say they can stay up late and set up camp. however, rumor has it has that 3 of them have been known to be unprepared and tap out early(aka they party like my dad) but you don't know who. one at a time (without replacement) you pick 4 people.

what is the probability that the third person you choose parties like my dad?

what is the probability that none of the four of you choose parties like my dad?