chapter 11: section 1: center images

textbook/11/1/Rules_Definitions.ipynb

@@ -18,7 +18,7 @@
     "\n",
     "**Complement of an event**: The complement of an event $A$ is the event that $A$ does not occur, denoted by $A^C$. For the event $A$ defined above, $A^C$ is the event that more than half of the babies are boys, or the set of integers from 50 to 100.\n",
     "\n",
-    "<img src=\"./img/complement.png\" width=\"400\"/> \n",
+    "<img align=\"center\" src=\"./img/complement.png\" width=\"400\"/> \n",
     "\n",
     "**Compound events**: Events built from combinations of other events."
    ]
@@ -29,7 +29,7 @@
    "source": [
     "**Union:** ($A$ or $B$) = ($A\\cup B$): set of all outcomes in $A$, or in $B$, or in both.\n",
     "\n",
-    "<img src=\"./img/union.png\" width=\"400\"/>"
+    "<img align=\"center\" src=\"./img/union.png\" width=\"400\"/>"
    ]
   },
   {
@@ -38,7 +38,7 @@
    "source": [
     "**Intersection:**  ($A$ and $B$) = ($A\\cap B$): set of all outcomes that are in $A$ and in $B$.\n",
     "\n",
-    "<img src=\"./img/intersection.png\" width=\"400\"/>\n"
+    "<img align=\"center\" src=\"./img/intersection.png\" width=\"400\"/>\n"
    ]
   },
   {