please help answer

During LARP fest teams summon LVS angry chickens for use in their projects (it's well known chickens are excellent surface mount solderers). Based on historic data there is an estimated 40% chance of angry chicken failure when summoning angry chicken that have not been summoned before. 1. What is the probability that one angry chicken fails given it is the rst, second, or fth angry chicken summoned? 2. What is the probability the 8th chicken fails, and 6 other chickens have also failed? 3. What is the expected number of chickens summoned before you get two errors? 4. What is the expected number of chickens summoned to get 5 errors? Assume all angry chickens are independent