What were the chances that Dr. Livesey and his people would survive the mutiny?

Their chances are small, and Silver claims Trelawney for himself.

"You'll say so, Israel when you see," said Silver. "Only one thing I claim—I claim Trelawney. I'll wring his calf's head off his body with these hands, Dick!" he added, breaking off. "You just jump up, like a sweet lad, and get me an apple, to wet my pipe like."