A bowl contains 25 carnelian, 7 obsidian, and 1 jade marbles. You reach in without looking and pull out two marbles, one after the other. What's the probability that you pulled out: (Write all answers as a decimal rounded to at least 4 decimal places.) a) Two obsidian marbles? b) First a carnelian and then a jade marble? c) A jade marble second given that the first marble was obsidian?.