do i need to explain to you why people have stereotypes?
Given an amazingly unlikely situation where you had to choose who was probably gonna go to jail on the show cops having only two pictures and no other data, the rational/logical choice is that the first picture of the african (idk his nationality... african-american?) is more affiliated with gangs and the business man simply with business.
If you were to dress up the caucasian male as the african male and have the caucasian male throw up hand signs, while simultaneously making the african male a business exec appearance AND PEOPLE STILL chose the black male, then THAT would be scientifically significant.
In other words, the answer is the african male, but for me it has nothing to do with race and everything to do with appearance and the obvious hand signs. Would rather sit next to a guy with a gun or a guy with chocolates and a little cute dog?