A rodeo rider gets tossed up into the air by a black bull as fellow cowboys look on .
It is probable that a black bull tosses a rodeo rider off its back and into the air .
It is probable that a black bull tosses a rodeo rider off its back and into the air .
It is impossible that a black bull tosses a rodeo rider off its back and into the air .
A black bull tosses a rodeo rider off its back and into the air .