diff --git a/Week01/info_mehmet_ali_turan.py b/Week01/info_mehmet_ali_turan.py
new file mode 100644
index 00000000..741bceb4
--- /dev/null
+++ b/Week01/info_mehmet_ali_turan.py
@@ -0,0 +1,2 @@
+student_id = "230315078"
+full_name = "Mehmet Ali Turan"
diff --git a/Week02/weighted_mehmet_ali_turan.py b/Week02/weighted_mehmet_ali_turan.py
new file mode 100644
index 00000000..17867cb2
--- /dev/null
+++ b/Week02/weighted_mehmet_ali_turan.py
@@ -0,0 +1,10 @@
+import random
+
+def weighted_srs(data, n, weights, with_replacement):
+    if with_replacement: return random.choices(data, weights=weights, k=n)
+    d, w, r = list(data), list(weights), []
+    for _ in range(n):
+        i = random.choices(range(len(d)), weights=w)[0]
+        r.append(d.pop(i))
+        w.pop(i)
+    return r