diff --git a/Week03/weighted_buse_demirbas.py b/Week03/weighted_buse_demirbas.py
new file mode 100644
index 0000000..8b561c6
--- /dev/null
+++ b/Week03/weighted_buse_demirbas.py
@@ -0,0 +1,6 @@
+import random
+def weighted_srs(data , n , weights , with_replacement = False):
+    if with_replacement == True and wight is not none:
+        return.choices(data , n , weights = weights)
+    else:
+        return random.sample(data , n )