Where are the young more likely to live? Figure 11.11 is a stem plot of the percentage of residents aged 18 to 34 in each of the 50 states. The stems are whole percent and the leaves are tenths of a percent. a. The shape of the distribution suggests that the mean will be about the same as the median are similar? b. Find the mean and median of these data and verify that the mean and the median are similar..