Final answer:
Bar graphs typically show that higher education correlates with higher income, and age can be associated with increases in both education and income due to the accumulation of skills and experience.
Step-by-step explanation:
When comparing the bar graphs on education, age, and income, a general trend can be observed. Typically, as education level increases, so does income. Meanwhile, there may be correlations between age and both education and income, with certain age brackets more likely to have higher education and, subsequently, higher income. These factors are often interrelated because individuals with higher education levels can acquire skills that offer better-paying jobs, and as they age, they accumulate experience that often leads to income increases.