As for pricing, this happens elsewhere than America too, at least here in the eurozone it is very common too. There’s an article about it here which may or may not explain this to your satisfaction: en.wikipedia.org/wiki/Psychological_pricing
As for 9 out of 10 doctors: our numeral system is based on 10 (because we have 10 fingers), so 10 is a number people can easily grasp, so to speak…
hperrin@lemmy.ca 2 weeks ago
You’re not gonna believe this, but it’s the highest number before going to the next place in base ten.