Demonstrating probabilistic outcomes using real-time data is especially well-suited to larger lecture classes where one can generate large data sets easily. The difficulty comes in quickly collecting, analyzing, and displaying the information. With the advent of wireless polling technology (clickers), this difficulty is removed. In this paper we describe an activity developed in one of our physics classes to test one of the classic cases of probability in popular culture, The Monty Hall Problem. Using clickers, a paper handout, and stickers, one can easily probe the class opinion on the outcome and then vividly and definitively test it. At the end of the activity, the students have confronted through direct experience the often counterintuitive nature of probability.