YEG imagineer
Active Member
Infill started on the NE corner of 87th Avenue and 110th St.
The real challenge are the root radius', not the trees.
This was frustrating to read. It just says "1/6 the rate of fire death" over and over, burying the lede - which is the n value here.Pew reports that modern multifamily housing is much more fire-resistant than single-family housing (in the US, at least).
Modern Multifamily Buildings Provide the Most Fire Protection
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Modern Multifamily Buildings Provide the Most Fire Protection
A large body of research has demonstrated that apartment buildings and other types of multifamily housing can provide many benefits to a community, especially when built in high-demand areas where housing is badly needed. Multifamily housing can boost economic opportunity and foster growth while...www.pew.org
When testing the differences between two proportions, the relevant sample sizes are the denominators—the number of occupants—which are very large. Granted, in this case the occupants are not all independent from each other (because some of them live in the same building, or within the same jurisdiction with its own fire code, or the same climate with a certain fire risk...) but it's fair to assume that we're not lacking in statistical power here.This was frustrating to read. It just says "1/6 the rate of fire death" over and over, burying the lede - which is the n value here.
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You can't make this kind of inference with a sample size this small. There are some good points made, but overall this is not a reliable indicator of anything.
How is the number of occupants the relevant denominator, rather than the number of fires? If one guy dies in a post-2000 townhome, that's 5% of the total fatal incidents.When testing the differences between two proportions, the relevant sample sizes are the denominators—the number of occupants—which are very large. Granted, in this case the occupants are not all independent from each other (because some of them live in the same building, or within the same jurisdiction with its own fire code, or the same climate with a certain fire risk...) but it's fair to assume that we're not lacking in statistical power here.
Because that headline result is not that fewer people died per fire (although it's about the same in both categories—about 1.15-1.2), but that fewer people died period, mostly because there was a lower rate of fires. This means the relevant denominator is "how many people were living in each kind of housing?". To catch up to the same overall death rate, there would need to be 80-90 more fires in newer multifamily homes, which is a few times more than the number there actually were. That seems very, very unlikely to be a chance fluctuation. So if you live in newer multifamily housing, you were considerably less likely to die in a fire than if you live in (newer or older, but especially older) single-family housing.How is the number of occupants the relevant denominator, rather than the number of fires? If one guy dies in a post-2000 townhome, that's 5% of the total fatal incidents.




