I’m not sure if this next one is really a cliche, or just a nother example of sloppy reasoning.
DISCLAIMER: I didn’t go to U.S.C., am not a Trojans fan, and don’t object to prognosticators picking somebody else to win the national championship. It’s perfectly fine if prognosticators want to say “USC will miss Norm Chow,” or “They’ve got some weaknesses,” or “They have some dangerous opponents on their schedule.” There are all kinds of valid reasons to question whether they’ll go all the way this season.
But there’s one PARTICULAR argument I’ve already heard on radio talk shows and seen in newspaper columns several times this month that baffle me. The argument has usually gone something like this:
“It’s HARD to win a national championship. It’s VERY hard to do it twice in a row. It’s almost impossible to do it three times in a row. That’s why I don’t think they can do it this year.”
HUH?
To use a crude analogy, if I flip a coin ten times, the chances of it coming up heads all ten times are 1 in 1024. Pretty remote, right? But if I get heads 9 times in a row, it’s absurd for someone to say “The next flip can’t possibly come up heads, because the chances of flipping heads ten times in a row are so slim.” The previous 9 flips have no bearing on what happens next time! The odds on THIS flip are 50-50 all over again.
So, while it’s perfectly valid to say “I just don’t think USC is good enough to go all the way this year,” it’s ridiculous to factor in the past two seasons when calculating the odds of their going all the way THIS season.
One other thing that I hear from sportscasters all the time… again, this may not be a cliche, but it shows sloppy thinking.
It’s a pretty safe bet that, if you check out .any NFL team’s stats, you’ll find that they have a .900 winning percentage whenever their star running back carries the ball 40 or more times. I mean, I’m sure the Steelers are nearly undefeated when Jerome Bettis has 40 carries. I’m sure that the Bengals had a great winning percentage whenever Corey Dillion carried the ball 43 times.
On the other hand, it’s a good bet the New York Giants lost most games in which Kerry Collins threw 50 passes. And most likely, the Bills had a terrible record in games where Drew Bledsoe threw for 400+ yeards.
And TV color commentators always ascribe great significance to that stat. TO them, it proves that the only way to win is to run the ball.
No. Just the opposite. They’ve got it backwards. The only way to to run the ball that many times is to be winning.
That is, the Steelers didn’t win all those games BECAUSE Bettis carried it 40 times- rather, they had the luxury of running the ball repeatedly late in the game because they had a big lead! And the Giants didn’t lose BECAUSE Kerry Collins threw the ball 50 times- rather, he HAD to throw the ball a lot BECAUSE the Giants were trailing by a wide margin.