Figure 2 : Histogram of logarithms of the relative risk, rate and ratio data, together with
the mixture distribution y=0.192ϕ(x,0, 0.07892 )+ 0.808ϕ(x,0.734, 0.6862) where the
numerical values used here are calculated as described in the sixth model.

David Kault Journal of Medical Statistics and Informatics  2014 2:5DOI : 10.7243/2053-7662-2-5