Historically, what is the correlation between female leaders and the initiation of armed conflict?10/3/2023 The table below measures the correlation coefficient of certain statistics with wins. If the two variables have no relationship at all, the CC will be close to zero. If two variables move with each other but in opposite directions (say, the temperature outside and the amount of your heating bill), the CC will be closer to -1. Essentially, if two variables move in the same direction, their correlation coefficient them will be close to 1. The correlation coefficient is a measure of the linear relationship between two variables on a scale from -1 to 1. It is easy to test how closely correlated two variables are in this case, passer rating (or any other statistic) and wins. Passer rating will always have supporters for one reason: it has been, is, and always will be correlated with winning. A recent post on a Cowboys fan site talked about Dallas’ need to improve their passer rating differential. But there are some who believe in the power of passer rating, like Cold Hard Football Facts founder Kerry Byrne. Some argue that it’s hopelessly confusing others simply think it just doesn’t work. Nearly all football fans have issues with passer rating. Adopted in 1973, the NFL has used passer rating ever since to crown its ‘passing’ champion. Finally, a special committee, headed by Don Smith of the Pro Football Hall of Fame, came up with the most complicated formula yet to grade the passers. Various systems emerged over the next three decades, but none of them were capable of separating the best quarterbacks from the merely very good. In the 1930s, the NFL first used total yards gained and later completion percentage to determine the league’s top passer. Which stats should be used to analyze quarterback play? That question has mystified the NFL for at least the last 80 years.
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