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>Also, it can't possibly be exponential because the US population is not growing exponentially This is completely wrong. The fraction of home-schooled students
by logicchains 3y ago
>Also, it can't possibly be exponential because the US population is not growing exponentially
This is completely wrong. The fraction of home-schooled students could e.g have been increasing from 0.02% to 0.04% to 0.08% to 0.16% even if the overall population wasn't growing at all, and that's considered exponential growth. Clearly there are indeed problems with US maths education.
- astrange 3y agoAnd then after another 6 doubling periods it'd get to 10%, will it? Exponential till it's not isn't exponential, it's logistic.
- denton-scratch 3y agoI had to look up "logistic" in that context. Almost anything that is described as "exponential" isn't really exponential, if the curve is describing a real-world quantity. Real-world quantities tend to be subject to limits. I'm an annoying pedant regarding the word "exponential", which is commonly used (especially by journalists) simply to mean "grows fast". I think it's fair to call a curve "exponential" if the relevant part of the curve approximates to exponential.
- astrange 3y agoIt's odd to say you're a pedant about "exponential" when you don't know what a logistic curve is!