From e693e178d41064eb820473581d9dfd73da4908dc Mon Sep 17 00:00:00 2001
From: Allen Downey <downey@allendowney.com>
Date: Thu, 30 Nov 2023 11:32:03 -0500
Subject: [PATCH] Updating the notebooks

---
 notebooks/chap01.ipynb |  30 ++++++------
 notebooks/chap02.ipynb |   8 ++--
 notebooks/chap05.ipynb |   4 +-
 notebooks/chap06.ipynb | 104 ++++++++++++++++++++---------------------
 4 files changed, 73 insertions(+), 73 deletions(-)

diff --git a/notebooks/chap01.ipynb b/notebooks/chap01.ipynb
index 10c89633..e9e0b8eb 100644
--- a/notebooks/chap01.ipynb
+++ b/notebooks/chap01.ipynb
@@ -83,7 +83,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 2,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:08.628591Z",
@@ -118,7 +118,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 6,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:08.634488Z",
@@ -131,7 +131,7 @@
    "source": [
     "import pandas as pd\n",
     "\n",
-    "gss = pd.read_csv('gss_bayes.csv', index_col=0)\n",
+    "gss = pd.read_csv('gss_bayes.csv')\n",
     "gss.head()"
    ]
   },
@@ -143,7 +143,7 @@
     "\n",
     "The columns are\n",
     "\n",
-    "* `caseid`: Respondent id (which is the index of the table).\n",
+    "* `caseid`: Respondent identifier.\n",
     "\n",
     "* `year`: Year when the respondent was surveyed.\n",
     "\n",
@@ -171,7 +171,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 7,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.085579Z",
@@ -197,7 +197,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 8,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.100573Z",
@@ -222,7 +222,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 9,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.108607Z",
@@ -254,7 +254,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 10,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.115436Z",
@@ -279,7 +279,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 11,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.121943Z",
@@ -310,7 +310,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 12,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.133453Z",
@@ -333,7 +333,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 13,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.138777Z",
@@ -379,7 +379,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 14,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.144820Z",
@@ -402,7 +402,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 15,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.150191Z",
@@ -445,7 +445,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": 16,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:09.156357Z",
@@ -1658,7 +1658,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.12"
+   "version": "3.10.12"
   }
  },
  "nbformat": 4,
diff --git a/notebooks/chap02.ipynb b/notebooks/chap02.ipynb
index 9010713f..ec7ba527 100644
--- a/notebooks/chap02.ipynb
+++ b/notebooks/chap02.ipynb
@@ -290,12 +290,12 @@
    "source": [
     "I call the result `unnorm` because these values are the \"unnormalized posteriors\".  Each of them is the product of a prior and a likelihood:\n",
     "\n",
-    "$$P(B_i)~P(D|B_i)$$\n",
+    "$$P(H_i)~P(D|H_i)$$\n",
     "\n",
     "which is the numerator of Bayes's Theorem. \n",
     "If we add them up, we have\n",
     "\n",
-    "$$P(B_1)~P(D|B_1) + P(B_2)~P(D|B_2)$$\n",
+    "$$P(H_1)~P(D|H_1) + P(H_2)~P(D|H_2)$$\n",
     "\n",
     "which is the denominator of Bayes's Theorem, $P(D)$.\n",
     "\n",
@@ -819,7 +819,7 @@
  "metadata": {
   "celltoolbar": "Tags",
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -833,7 +833,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.8"
+   "version": "3.10.12"
   }
  },
  "nbformat": 4,
diff --git a/notebooks/chap05.ipynb b/notebooks/chap05.ipynb
index 44d3056d..5842fb91 100644
--- a/notebooks/chap05.ipynb
+++ b/notebooks/chap05.ipynb
@@ -1306,7 +1306,7 @@
  "metadata": {
   "celltoolbar": "Tags",
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -1320,7 +1320,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.8"
+   "version": "3.10.12"
   }
  },
  "nbformat": 4,
diff --git a/notebooks/chap06.ipynb b/notebooks/chap06.ipynb
index a0e040f1..67da7313 100644
--- a/notebooks/chap06.ipynb
+++ b/notebooks/chap06.ipynb
@@ -902,7 +902,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 32,
+   "execution_count": 31,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.421840Z",
@@ -982,7 +982,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 33,
+   "execution_count": 32,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.606680Z",
@@ -1010,7 +1010,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 34,
+   "execution_count": 33,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.612684Z",
@@ -1038,7 +1038,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 35,
+   "execution_count": 34,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.618422Z",
@@ -1061,7 +1061,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 37,
+   "execution_count": 35,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.644030Z",
@@ -1106,7 +1106,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 38,
+   "execution_count": 36,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.820717Z",
@@ -1138,7 +1138,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 39,
+   "execution_count": 37,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.872557Z",
@@ -1162,7 +1162,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 40,
+   "execution_count": 38,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:26.936312Z",
@@ -1193,7 +1193,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 41,
+   "execution_count": 39,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.107058Z",
@@ -1220,7 +1220,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 42,
+   "execution_count": 40,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.113201Z",
@@ -1244,7 +1244,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 43,
+   "execution_count": 41,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.119898Z",
@@ -1269,7 +1269,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 44,
+   "execution_count": 42,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.132181Z",
@@ -1295,7 +1295,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 45,
+   "execution_count": 43,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.180198Z",
@@ -1325,7 +1325,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 46,
+   "execution_count": 44,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.302382Z",
@@ -1341,7 +1341,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 47,
+   "execution_count": 45,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.310142Z",
@@ -1399,7 +1399,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 48,
+   "execution_count": 46,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.315665Z",
@@ -1415,7 +1415,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 49,
+   "execution_count": 47,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.320891Z",
@@ -1431,7 +1431,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 50,
+   "execution_count": 48,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.326406Z",
@@ -1460,7 +1460,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 51,
+   "execution_count": 49,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.332446Z",
@@ -1476,7 +1476,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 52,
+   "execution_count": 50,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.337763Z",
@@ -1492,7 +1492,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 53,
+   "execution_count": 51,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.344018Z",
@@ -1518,7 +1518,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 54,
+   "execution_count": 52,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.350794Z",
@@ -1534,7 +1534,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 55,
+   "execution_count": 53,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.356825Z",
@@ -1550,7 +1550,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 56,
+   "execution_count": 54,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.363702Z",
@@ -1578,7 +1578,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 57,
+   "execution_count": 55,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.370205Z",
@@ -1594,7 +1594,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 58,
+   "execution_count": 56,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.375761Z",
@@ -1610,7 +1610,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 59,
+   "execution_count": 57,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1619,7 +1619,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 60,
+   "execution_count": 58,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -1628,7 +1628,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 61,
+   "execution_count": 59,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.382061Z",
@@ -1644,7 +1644,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 62,
+   "execution_count": 60,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.424920Z",
@@ -1660,7 +1660,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 63,
+   "execution_count": 61,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.544172Z",
@@ -1676,7 +1676,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 64,
+   "execution_count": 62,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.550649Z",
@@ -1703,7 +1703,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 65,
+   "execution_count": 63,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.559242Z",
@@ -1719,7 +1719,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 66,
+   "execution_count": 64,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.570896Z",
@@ -1735,7 +1735,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 67,
+   "execution_count": 65,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.582633Z",
@@ -1751,7 +1751,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 68,
+   "execution_count": 66,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.591475Z",
@@ -1776,7 +1776,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 69,
+   "execution_count": 67,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.599975Z",
@@ -1792,7 +1792,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 70,
+   "execution_count": 68,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.614916Z",
@@ -1808,7 +1808,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 71,
+   "execution_count": 69,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.623276Z",
@@ -1824,7 +1824,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 72,
+   "execution_count": 70,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.629708Z",
@@ -1840,7 +1840,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 73,
+   "execution_count": 71,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.639970Z",
@@ -1856,7 +1856,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 74,
+   "execution_count": 72,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.652015Z",
@@ -1872,7 +1872,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 75,
+   "execution_count": 73,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.660241Z",
@@ -1896,7 +1896,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 76,
+   "execution_count": 83,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:27.667020Z",
@@ -1912,7 +1912,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 77,
+   "execution_count": 84,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:29.237941Z",
@@ -1928,7 +1928,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 78,
+   "execution_count": 85,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:29.247538Z",
@@ -1944,7 +1944,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 79,
+   "execution_count": 86,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:29.253937Z",
@@ -1960,7 +1960,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 80,
+   "execution_count": 87,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:29.291044Z",
@@ -1976,7 +1976,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 81,
+   "execution_count": 88,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:29.407201Z",
@@ -1992,7 +1992,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 82,
+   "execution_count": 89,
    "metadata": {
     "execution": {
      "iopub.execute_input": "2021-04-16T19:35:29.415545Z",
@@ -2017,7 +2017,7 @@
  "metadata": {
   "celltoolbar": "Tags",
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 3 (ipykernel)",
    "language": "python",
    "name": "python3"
   },
@@ -2031,7 +2031,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.12"
+   "version": "3.10.12"
   }
  },
  "nbformat": 4,