@mld-woody said:
Not appropriate in terms of doing a statistical analysis though or when bringing up the term statistical significance. Especially since, in this case, we should be talking about frequency of instances and not the total number of deaths. The goal would be to reduce the frequency and the total number of deaths can be greatly reliant on luck (or bad luck). You could take a mean of means across each year as well, showing greater consistency and more significance in the number of mass shootings, even mass shooting deaths, than just 9/11. The variation on the terrorist attack data set, year over year, would be huge. One of these things is happening multiple times every year and one has happened once in the last 20 years (damn it was over 20 years ago now, crazy).
My math is shitty, that's a fair argument. Here is the data of someone who did it properly.
So as shitty as my statistical techniques were, the numbers I pulled out of my ass weren't far off. Dying from a mass shooting is on the same order of magnitude as dying at the hands of a foreign terrorist. We don't need to restrict our Bill of Rights any further for something that is a statistical rarity. Of note, this number for mass shootings appears to include drug and gang related killings. It is likely inflated.
Source and dataset: https://docs.google.com/spreadsheets/d/1px5OKruddVfj1FEAJAV1bS3-mUv2c1P8BgVx8KMAZ80/edit
Mass shooting dataset: https://www.gunviolencearchive.org/reports/mass-shootings/2014