All else being equal, the chance of an engine failure in a
twin is higher than it is in a single, but the chance of total
powerplant failure (all engines) is lower.

This may be true mathematically, but in the real world, all things are
not equal. Twins have more than just an extra engine, and that makes a
significant difference.

Jose
--
"Never trust anything that can think for itself, if you can't see where
it keeps its brain." (chapter 10 of book 3 - Harry Potter).
for Email, make the obvious change in the address.