A large set was collected and analyzed for the U. S. college population based on college majors. From the scatter plots produced, the following associations were observed. The linear model p = 2,376t + 73,219 can be used to estimate the number of college seniors p who graduated with a bachelor's degree in psychology t years after 2000. The equation b = 2,414t + 56,545 models the number of college seniors b who graduated with a bachelor's degree in biology t years after 2000.