typo

15_hierarchical_modelling.ipynb

@@ -85,7 +85,7 @@
       "source": [
         "## Levels of pooling\n",
         "\n",
-        "Hierarchical models exist on the continuum of two extreme cases: complete pooling and no pooling. In-between the two extreems is partial pooling.\n",
+        "Hierarchical models exist on the continuum of two extreme cases: complete pooling and no pooling. In-between the two extremes is partial pooling.\n",
         "\n",
         "Let's explore each of these approaches and provide Numpyro code examples."
       ]