diff --git a/Week03/weighted_birhat_tas.py b/Week03/weighted_birhat_tas.py
new file mode 100644
index 0000000..226f27c
--- /dev/null
+++ b/Week03/weighted_birhat_tas.py
@@ -0,0 +1,9 @@
+import random 
+
+def weighted_srs(data,n,weights,with_replacement = False):
+  if with_replacement == True or weights != None:
+    sample = random.choices(data,k=n,weights = weights)
+  else:
+    sample = random.sample(data,n)
+  return sample
+