diff --git a/Week02/weighted_muhammet_birge.py b/Week02/weighted_muhammet_birge.py
new file mode 100644
index 00000000..ca78209c
--- /dev/null
+++ b/Week02/weighted_muhammet_birge.py
@@ -0,0 +1,10 @@
+import random
+def weighted_srs(data, n, weights, with_replacement=False):
+    if with_replacement: return random.choices(data, weights=weights, k=n)
+    if not weights: return random.sample(data, n)
+    res, pool = [], list(zip(data, weights))
+    for _ in range(n):
+        item = random.choices(pool, weights=[w for d, w in pool])
+        res.append(item)
+        pool.remove(item)
+    return res