Data commit

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

@@ -0,0 +1,28 @@
+import extensions;
+
+extension op
+{
+    average()
+    {
+        real sum := 0;
+        int count := 0;
+
+        var enumerator := self.enumerator();
+
+        while (enumerator.next())
+        {
+            sum += enumerator.get();
+            count += 1;
+        };
+
+        ^ sum / count
+    }
+}
+
+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()
+}