If we say there are 3 boy and 6 girls lined up in random order (all permutations are equal) and were asked to determine the probability that the 2nd is a boy, would the answer to that question be the same if we had 3 red balls and 6 blue balls that are drawn in succession and were replaced? and would the answer be the same whether we ask for the probability of the 3rd 4th and so on... that it is a boy?