Having your background in statistics, however, have you ever made one about the modern aircraft with FBW versus fatalities?
No I haven't but I am sure that the safety advances made by FBW in terms of removing many previous causes of accidents in non-FBW aircraft have offset many times over the handful of accidents that it may have contributed to.
And even if these were directly caused by FBW (rather than a consequence of a chain of events where FBW contributed) the sum total is still way less in absolute terms (let alone rate per landing) than the number of hull destructions following a hard landing experienced by the MD-11 fleet.