From 9956f1a2909965049c9595fbb25a165b56f95804 Mon Sep 17 00:00:00 2001
From: Satu Asikainen <satu.asikainen@helsinki.fi>
Date: Sat, 23 Jan 2016 20:16:40 +0200
Subject: [PATCH] =?UTF-8?q?teht=C3=A4v=C3=A4=207=201.=20palautus?=
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---
 koodi.rb | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
 mode change 100644 => 100755 koodi.rb

diff --git a/koodi.rb b/koodi.rb
old mode 100644
new mode 100755
index 932f2b3..723580a
--- a/koodi.rb
+++ b/koodi.rb
@@ -1 +1,7 @@
-# kirjoita koodi tänne
+def keskiarvo(taulu)
+  summa = taulu.inject(0){|tulos, x| tulos + x }
+  ka = summa.to_f / taulu.length.to_f
+  return ka
+end
+
+