This is from my AP Statistics class and i already gave my super-educated guess, im just posting it here to see how do you guys reason it Here's the problem: Suppose you live on scenic Beacon Hill in Boston and decide that, between the high costs of gasoline and parking, owning a car is just not affordable at this time. You're worried, naturally, about how you'll get around but know that you can take advantage of the new and improved public transportation system to get to work and to most of the locations you visit. You will, however, need to take a taxi when shopping for your groceries each week, and being the type of person who worries about everything, you spend many sleepless nights wondering about just how many taxis there are available in Boston. While on a shopping trip down Boston's historic and fashionable Newbury Street on a beautiful spring day, you notice nine taxis drive by with the following medallion numbers: 594, 1211, 1633, 1195, 108, 697, 825, 474, 286 Assuming that taxi medallion numbers in Boston run in sequence from 1 to N, you'd like to estimate N, the number of taxi medallions ( and hence, the number of taxis ) available in Boston. Thank goodness you're a statistics student!