At the end of the fifth meeting, the teachers worked individually with a familiar population with known mean and standard deviation, the skewed incomes of the residents of “Mira Beach,” shown in Figure 1. They were asked to construct three simulated SDMs, for sample sizes of 5, 15, and 30, using 100 random samples each, and to compute their means and standard deviations. The final task was, “Compare the three distributions that you constructed. What can you say about the shape of the distribution as the sample size, n, increases? What can you say about the mean? What can you say about the standard deviation?”