diff --git a/Week03/weighted_serhat_tufan.py b/Week03/weighted_serhat_tufan.py
new file mode 100644
index 0000000..2c50f39
--- /dev/null
+++ b/Week03/weighted_serhat_tufan.py
@@ -0,0 +1,10 @@
+import random
+def weighted_srs(data=data,n=3,weights=weights,with_replacement=True):
+    if(with_replacement):
+        return random.choices(population=data,weights=weights,k=n)
+    else:
+        return(random.sample(population=data,k=n))
+#data=["Durhasan","Bakhele","Sövüşçü","Döndü"]
+#weights=[0.1,0.6,0.1,0.2]
+#sample=weighted_srs(data=data,n=3,weights=weights,with_replacement=True)
+#print(sample)