typo - missing normalization term #215

Author: rlabbe

12-Particle-Filters.ipynb

@@ -1034,7 +1034,7 @@
     "\n",
     "Maybe that seems a little abstract. If we want to compute the mean of the particles we would compute\n",
     "\n",
-    "$$\\mu = \\sum\\limits_{i=1}^N x^iw^i$$\n",
+    "$$\\mu = \\frac{1}{N}\\sum\\limits_{i=1}^N x^iw^i$$\n",
     "\n",
     "which is the equation I gave you earlier in the chapter.\n",
     "\n",