Problem: In a study of the influence of incarceration rates on states' crime rates, the coefficient of determination is .15 (R² = .15). What is the proper interpretation of this finding? Group of answer choices 15% of the variation in state crime rates is explained by their rate of incarceration rates. A one-unit change in a state's incarceration rate leads to an 15% decreased in their crime rate. 15% of the variation in a state's incarceration rate is explained by their crime rate. If a state did not incarcerate anyone, they would have a crime rate of 15 per 100,000.