diff --git a/Week03/Weighted_muhammet_gulden.py b/Week03/Weighted_muhammet_gulden.py
new file mode 100644
index 0000000..471e95c
--- /dev/null
+++ b/Week03/Weighted_muhammet_gulden.py
@@ -0,0 +1,10 @@
+import random
+
+def weighted_srs(data, n, weights, with_replacement):
+    return random.choices(data, weights=weights, k=n) if with_replacement else random.sample(data, n)
+
+data = ['A', 'B', 'C', 'D']
+weights = [10, 5, 3, 1]
+n = 2
+print(weighted_srs(data, n, weights, True))
+print(weighted_srs(data, n, weights, False))