> I have no problem spotting them while driving a large SUV That's the bias. It could very well mean "no problem spotting the ones I had no problems spotting".

> I have no problem spotting them while driving a large SUV That's the bias. It could very well mean "no problem spotting the ones I had no problems spotting". By definition you can't know how many you never spotted and maybe even ended up under your wheels. Most drivers only kill a pedestrian once in their life, and relatively few actually are that unfortunate, so it's not something you can easily calibrate for from personal experience (with any luck you never will). They all saw and avoided all the pedestrians that jumped in front of them until they didn't. Many of these accidents happen at low speed when pedestrians thinking they have time meet a driver with a giant blindspot right in front of them and doesn't even try to brake. Search for "frontover" pictures and you'll realize how ridiculously large that blindspot is.