I just had my first lecture in statistics and we were left with a question before the class ended, and I have no idea how to solve it.
The question goes: Every day at training camp there will be a drawing of lots to figure out, who has to do the dishes. Every day there will be 4 people doing the dishes and there is a total of 35 people. The possibility of getting chosen is equal for everybody, every day. Calculate the probability that a random person will NOT be chosen during the entire camp, which lasts for 7 days.
I have no idea what to search for on Google, so if anyone can guide me to either the solution or a link, it would be much appreciated.