This data was studied to investigate whether there was a relationship between whether the victim had been abducted and the age of the victims in certain crimes. The age of the victims had been classiffed as 0-10 and 11+.
data(abduct.age.df)
C. G. G. Aitken, T. Connolly, A. Gammerman, G. Zhang, D. Bailey, R. Gordon, and R. Oldfield. Statistical modelling in specific case analysis. Science & Justice, 36(4):245-255, October 1996.