Merge pull request CamDavidsonPilon#85 from isofer/master

Minor fix to equation in LawOfLargeNumbers.ipynb

Author: CamDavidsonPilon

Chapter4_TheGreatestTheoremNeverTold/LawOfLargeNumbers.ipynb

@@ -142,7 +142,7 @@
       "\n",
       "i.e., we consider the average\n",
       "\n",
-      "$$ \\frac{1}{N_Y} \\sum_{k=1}^{N_Y} Y_k \\approx D(N) $$ where $N_Y$ is some suitably large number."
+      "$$ \\sqrt{\\frac{1}{N_Y} \\sum_{k=1}^{N_Y} Y_k} \\approx D(N) $$ where $N_Y$ is some suitably large number."
      ]
     },
     {
@@ -1179,4 +1179,4 @@
    "metadata": {}
   }
  ]
-}
+}