diff --git "a/Week03/weighted_\305\236erif_Burak_Kalkan.py" "b/Week03/weighted_\305\236erif_Burak_Kalkan.py"
new file mode 100644
index 0000000..326c0b5
--- /dev/null
+++ "b/Week03/weighted_\305\236erif_Burak_Kalkan.py"
@@ -0,0 +1,10 @@
+import random
+# Şerif Burak Kalkan - 210315023
+def weighted_srs(data, n, weights, with_replacement):
+    if not with_replacement:
+        raise ValueError("Weighted simple random sampling without replacement is not supported.")
+    sample = []
+    for _ in range(n):
+        choice = random.choices(data, weights=weights)[0]
+        sample.append(choice)
+    return sample