A boy in a white t-shirt does a trick with his skateboard in a skate park .
It is improbable that the boy in the white t-shirt showed off to his friends by doing a trick at the skate park .
There is a better than even chance that the boy in the white t-shirt showed off to his friends by doing a trick at the skate park .
It is improbable that the boy in the white t-shirt showed off to his friends by doing a trick at the skate park .
The boy in the white t-shirt showed off to his friends by doing a trick at the skate park .