Tagged: statistics

Statistics and the Serial Killer

Andrei Chikatilo was serial killer who murdered at least 56 young women and children starting in 1978 until his capture in 1990. The details are as bad as one might expect, and apparently the murders and mutilations were how he achieved sexual release. His killings seemed unpredictable to investigators at...

Falling Economy, Falling Crime

Or maybe not… For some reason, common wisdom would have it that crime should go up when the economy is going down. Violent crime in particular. Apparently, the thinking is that less prosperity leads to increased frustration and desperation, leading to more beatings killings muggings and rapes. As if the...

Ninth Circuit Bungles Math, Can the Supremes Fix It?

The “Prosecutor’s Fallacy” is one example of why we think Statistics should be a required course in college. Let’s say the police have the DNA of a rapist. Only 1 in 3,000,000 people chosen at random will match that DNA sample. Your DNA matches. At your trial, the DNA expert...