"Do you know if throwing a curve ball hurts your arm?"
"I don't know."
Scientific method in baseball
River asks his friend a question, the question is, does throwing a curve ball hurt your arm? Then the friend said, I don't know. River thought to himself I better find out encase it does hurt your arm!
River decides to research his question on the internet. He finds out that everyone that throws a curve ball has arm troubles. Then he went to the CSI pitching coach to ask him his question. He got the same answer from the CSI coach.
I am pretty sure that everyone that throws a curve ball has arm troubles.
River collects data on a piece of paper of all of his observations.
River decides to experiment. He starts to throw a curve ball in his games. Nothing happens at first, but after a while his arm starts to hurt REALLY bad.
River makes a hypothesis and the hypothesis is that everyone that throws a curve ball has arm troubles.