How to Lie with Statistics: Philips AirFloss
The new Philips Sonicar AirFloss looks cool and they claim that it “removes up to 99% more plaque compared to regular brushing“, wow! 99%, that’s amazi…. wait a minute!
Let’s give that sentence another go. “…up to 99% more…”So for instance, if you have 100 “plaques” in your mouth and brushing gets rid of just 20 of them, will AirFloss get rid of 99 of the plaques… leaving just 1 nasty plaque? No it does not. It gets rid of 99% more than brushing. In my example, about 19 more plaques than brushing alone for a total of 39… or in reasonable terms “almost twice as much”. Apparently that fine statistic wasn’t good enough for Phillips America. The fact that they chose to say “99% more” instead of “100% more” or “twice as much” demonstrates that they were trying to deceive. “99% more” is simply an unreasonable claim any way you slice it. I am disappointed in Philips.
Now I’m not calling the Philips marketeers fucking liars, I’m just saying that trying to pull a fast one like that is deceptive, immoral and against the Federal Trade Commission’s guidelines. (Amazon.com listing)