A man aboard a red train helps a small child onto it while another person tries to get on .
Chances are about even that a man aboard a red train helps his son to board while another person tries to push his way on .
Chances are about even that a man aboard a red train helps his son to board while another person tries to push his way on .
It is almost certain that a man aboard a red train helps his son to board while another person tries to push his way on .
A man aboard a red train helps his son to board while another person tries to push his way on .