diff --git a/end of chapter exercises/Chapter 6 Exercises.ipynb b/end of chapter exercises/Chapter 6 Exercises.ipynb
index 4d8f09b..0f124f0 100644
--- a/end of chapter exercises/Chapter 6 Exercises.ipynb	
+++ b/end of chapter exercises/Chapter 6 Exercises.ipynb	
@@ -106,7 +106,7 @@
     "\n",
     "$\n",
     "p(x) = 0.4\\mathcal{N}(x| 10, 1) + 0.6\\mathcal{N}(x| 0, 8.4),\\\\\n",
-    "p(y) = 0.4\\mathcal{N}(x| 2, 1) + 0.6\\mathcal{N}(x| 0, 1.7)\n",
+    "p(y) = 0.4\\mathcal{N}(y| 2, 1) + 0.6\\mathcal{N}(y| 0, 1.7)\n",
     "$\n",
     "\n",
     "### b)\n",