diff --git a/2022/03-Machine Learning/cns_practice_rat.ipynb b/2022/03-Machine Learning/cns_practice_rat.ipynb
index 22153e4..55fdd14 100644
--- a/2022/03-Machine Learning/cns_practice_rat.ipynb	
+++ b/2022/03-Machine Learning/cns_practice_rat.ipynb	
@@ -206,7 +206,7 @@
     "points in zone i correctly classif ied as i\n",
     "total number of points classif ied as in zone i\n",
     "\n",
-    "**HINT**: class accuracies can be calculated by dividing the diagonal values of confusion\n",
+    "**HINT**: class precisions can be calculated by dividing the diagonal values of confusion\n",
     "matrix with the column sums.\n"
    ]
   },