diff --git a/python/math_utils.py b/python/math_utils.py
index 4554b6c..042c449 100644
--- a/python/math_utils.py
+++ b/python/math_utils.py
@@ -1,4 +1,14 @@
-# math_utils.py - Mathematical utility functions  
+# math_utils.py - Statistical utility functions  (feature-stats)
+def mean(numbers):  
+    return sum(numbers) / len(numbers)  
+
+def maximum(numbers): return max(numbers)  
+
+def minimum(numbers): return min(numbers)  
+
+def range_of(numbers):  
+    return max(numbers) - min(numbers)
+# math_utils.py - Mathematical utility functions (feature-math)
 def add(a, b): return a + b  
 
 def multiply(a, b): return a * b  
@@ -10,4 +20,4 @@ def factorial(n):
         return 1 
     result = 1  
     for i in range(1, n + 1): result *= i  
-    return result
\ No newline at end of file
+    return result