Jason, can you post the SD of each hybrid's mpg by model and transmission?
I'm betting the HCH with MT is the most consistant of all the hybrids. The Prius 2 seems all over the charts as does the HCH CVT but the HCH MT looks to have a much tighter group. |
SD standard deviation? By transmission? No :) 99% of people wouldn't be interested, so to be frank it isn't worth the time.
However, I will be including a 5-number summary on the graph as soon as I am able to script it :D |
I think the reason the MTs have less deviation has to do with the people, not the car.
The people who would buy a hybrid MT are not poor people who can't afford a CVT, since hybrids cost a few thousand more than non-hybrids. And, being a hybrid, these are not people who are going for speed-record-breaking performance. No, I think people who buy the hybrid MTs fall into a relatively narrowly-focused group who are going for the mileage. Buyers of CVTs are a wider cross section of people. I’m one of the hyper-milers, but I am too lazy to use a MT. |
The SD shouldn't be too hard to come up for a programmer that has access to the database. I could do it myself but that would mean entering hundreds of entries manually. I'll do the ranges:
Insight MT: 103.5 to 53.3 Insight CVT: 53.3 to 41.0 Prius 2: 63.6 to 36.3 Prius 1: 57.3 to 42.1 HCH CVT: 58.2 to 37.0 HCH MT: 54.5 to 44.0 Yep HCH MT has the smallest range! |
The ranges are quite simple, and for a couple weeks they were actually on the graphs, but I decided that until I got the quartiles up, they didn't really say much. Tell you what... once I get a 5-number summary up I'll think about generating a standard deviation.
Also, I used to offer the entire database for anyone to download, but as 2 million+ miles is now an extremely valuable resource, I don't think it wise to allow just anyone to "steal" the data. Now you can still download data for your own car, but that's it. |
I think the reason the MTs have less deviation has to do with the people, not the car. |
Holy smokes! ;)
https://www.greenhybrid.com/compare/mileage/ |
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