diff --git "a/\347\254\25409\347\253\240 EM\347\256\227\346\263\225\345\217\212\345\205\266\346\216\250\345\271\277/9.Expectation_Maximization.ipynb" "b/\347\254\254 09 \347\253\240 EM \347\256\227\346\263\225\345\217\212\345\205\266\346\216\250\345\271\277/9.Expectation_Maximization.ipynb"
similarity index 99%
rename from "\347\254\25409\347\253\240 EM\347\256\227\346\263\225\345\217\212\345\205\266\346\216\250\345\271\277/9.Expectation_Maximization.ipynb"
rename to "\347\254\254 09 \347\253\240 EM \347\256\227\346\263\225\345\217\212\345\205\266\346\216\250\345\271\277/9.Expectation_Maximization.ipynb"
index e6677b3..4457d3d 100644
--- "a/\347\254\25409\347\253\240 EM\347\256\227\346\263\225\345\217\212\345\205\266\346\216\250\345\271\277/9.Expectation_Maximization.ipynb"	
+++ "b/\347\254\254 09 \347\253\240 EM \347\256\227\346\263\225\345\217\212\345\205\266\346\216\250\345\271\277/9.Expectation_Maximization.ipynb"	
@@ -80,10 +80,10 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "pro_A, pro_B, por_C = 0.5, 0.5, 0.5\n",
+    "pro_A, pro_B, pro_C = 0.5, 0.5, 0.5\n",
     "\n",
     "\n",
-    "def pmf(i, pro_A, pro_B, por_C):\n",
+    "def pmf(i, pro_A, pro_B, pro_C):\n",
     "    pro_1 = pro_A * math.pow(pro_B, data[i]) * math.pow(\n",
     "        (1 - pro_B), 1 - data[i])\n",
     "    pro_2 = pro_A * math.pow(pro_C, data[i]) * math.pow(\n",