An African American in a red top and white and brown skirt crosses a street while a man in a blue shirt runs on it .
There is a better than even chance that a man is exercising while a black woman goes across a crosswalk .
There is a better than even chance that a man is exercising while a black woman goes across a crosswalk .
It is impossible that a man is exercising while a black woman goes across a crosswalk .
A man is exercising while a black woman goes across a crosswalk .