(covers information from several alternate timelines)
A statistical analysis was a report focusing on the the statistics surrounding an occurrence.
In 2374, Julian Bashir explained that the statistical analysis developed by himself, Jack, Lauren and Patrick became more accurate the further they projected into the future. (DS9: "Statistical Probabilities")
In 2377, B'Elanna Torres, seeking to alter her unborn baby's DNA to be less Klingon, ran statistical analyses and epidemiology to support her case, pleading with The Doctor to at least look at her work. (VOY: "Lineage")