You are give an Array A[1...n of n different keys. No two are equal to each other. You pick 3 random keys from A, and pick their median. What is the probability that their median is smaller than at least 90% of the keys ? You are give an Array A[1...n of n different keys. No two are equal to each other. You pick 3 random keys from A, and pick their median. What is the probability that their median is smaller than at least 90% of the keys