These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/Statistics-Distributions-1.20.0-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 6 KiB
[ebuild  N     ] dev-perl/Statistics-Descriptive-3.80.100::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 53 KiB
[ebuild  N     ] dev-perl/Statistics-TTest-1.1.0-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 6 KiB

Total: 3 packages (3 new), Size of downloads: 65 KiB