"If you mean focusing on large samples of data and ignoring random short-term fluctuations, then I buy in. If you mean something else, then please clarify."
well said, i agree with darryl here, anyone with any basic knowldge of statistics knows that there might not be a law of averages, but there sure is something known as regression to the mean, which i for once always make a note to take it into account, if the bookmakers don't, which they usually do, or if most punters dont which they usually don't...