The graph shows the relationship between obesity rates and median income in certain states. A graph titled Obesity Rates and Median Income of Selected notes shows notes on the horizontal axis, numbers on the left vertical axis, and numbers on the right vertical axis. The graph shows an upward trend for income and a downward trend for obesity rate.

Which statement best describes what happens to the obesity rate as median income increases?

The obesity rate goes up and down.
The obesity rate increases.
The obesity rate decreases.
The obesity rate remains the same.