Modulum statisticum utere

Problema

Datur tibi modulus Stats.rakumod qui duo subprogrammata exportat — total et mean — ubi mean super total aedificatum est:

unit module Stats;

sub total(@numbers) is export {
    [+] @numbers
}

sub mean(@numbers) is export {
    total(@numbers) / @numbers.elems
}

Scribe programma separatum quod hoc modulo utitur et, pro serie 10, 20, 30, 40, et summam et medium imprimit.

Cursum cum modulo in semita quaesitionis, programma imprimit:

$ raku -I. stats.raku
total: 100
mean: 25