There's also "Under what conditions when Tesla cars crash will they catch fire", and then you only look at your 12 crashes, and that's when everything goes wron

There's also "Under what conditions when Tesla cars crash will they catch fire", and then you only look at your 12 crashes, and that's when everything goes wrong. The Space Shuttle Challenger exploded shortly after take-off in January 1986. Subsequent investigation determined that the cause was failure of the O-ring seals used to isolate the fuel supply from burning gases..... NASA staff had analysed the data on the relation between ambient temperature and number of O-ring failures (out of 6), but they had excluded observations where no O-rings failed, believing that they were uninformative. Unfortunately, those observations had occurred when the launch temperature was relatively warm (65-80 degF). http://www.datavis.ca/gallery/missed.php http://www.datavis.ca/gallery/missed.php Let's look at this question "how bad will that fire be for persons and property involved?" You look at your 12 crashes where fire occurs, so (e.g.) 6 crashes. Of 6 crashes 3 were accompanied with injuries. All 3 crashes that were accompanied by electrical fires and injuries occurred was when the car's speed was between (e.g.) 40mph and 50mph. Does that mean when the speed is not between 40mph and 50mph, people won't be injured when there's a crash and a fire? It means nothing like that but it's too easy to make a wrong conclusion; you're skipping all the other data where injuries and/or fires happen independently of crashes.