A young man in a green t-shirt strums his guitar while sitting cross-legged on the floor .
Chances are about even that the young man is practicing his guitar for a band performance in a week .
Chances are about even that the young man is practicing his guitar for a band performance in a week .
It is highly unlikely that the young man is practicing his guitar for a band performance in a week .
The young man is practicing his guitar for a band performance in a week .