Data update

Task/Averages-Arithmetic-mean/Apple/averages-arithmetic-mean.apple

@@ -0,0 +1,2 @@
+ > [(+)/x%ℝ(:x)] ⟨3,1,4,1,5,9⟩
+3.833333333333333

Task/Averages-Arithmetic-mean/DuckDB/averages-arithmetic-mean.duckdb

@@ -0,0 +1,3 @@
+create or replace function average(lst) as (
+  list_sum(lst) / length(lst)
+);

Task/Averages-Arithmetic-mean/Elena/averages-arithmetic-mean.elena

@@ -21,8 +21,8 @@ extension op
 
 public program()
 {
-    var array := new int[]{1, 2, 3, 4, 5, 6, 7, 8};
-    console.printLine(
-        "Arithmetic mean of {",array.asEnumerable(),"} is ",
-        array.average()).readChar()
+   var array := new int[]{1, 2, 3, 4, 5, 6, 7, 8};
+   Console.printLine(
+      "Arithmetic mean of {",array.asEnumerable(),"} is ",
+      array.average()).readChar()
 }

Task/Averages-Arithmetic-mean/Pluto/averages-arithmetic-mean.pluto

@@ -0,0 +1,4 @@
+local function arithmetic_mean(a) return a:reduce(|sum, i| -> sum + i) / #a end
+
+local arrays = { {1, 2, 3, 4, 5}, {} }
+for arrays as a do print(arithmetic_mean(a)) end