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				+{ 
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				+ "cells": [ 
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				+  { 
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				+   "cell_type": "markdown", 
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				+   "metadata": { 
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				+    "collapsed": true 
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				+   }, 
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				+   "source": [ 
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				+    "## Birth Dates In The United States\n", 
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				+    "\n", 
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				+    "The raw data behind the story **Some People Are Too Superstitious To Have A Baby On Friday The 13th**, which you can read [here](http://fivethirtyeight.com/features/some-people-are-too-superstitious-to-have-a-baby-on-friday-the-13th/).\n", 
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				+    "\n", 
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				+    "We'll be working with the data set from the Centers for Disease Control and Prevention's National National Center for Health Statistics.  The data set has the following structure:\n", 
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				+    "\n", 
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				+    "- `year` - Year\n", 
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				+    "- `month` - Month\n", 
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				+    "- `date_of_month` - Day number of the month\n", 
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				+    "- `day_of_week` - Day of week, where 1 is Monday and 7 is Sunday\n", 
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				+    "- `births` - Number of births" 
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				+   ] 
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				+  }, 
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				+  { 
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				+   "cell_type": "code", 
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				+   "execution_count": null, 
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				+   "metadata": { 
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				+    "collapsed": false 
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				+   }, 
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				+   "outputs": [], 
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				+   "source": [ 
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				+    "f = open(\"births.csv\", 'r')\n", 
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				+    "text = f.read()\n", 
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				+    "print(text)" 
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				+   ] 
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				+  }, 
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				+  { 
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				+   "cell_type": "code", 
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				+   "execution_count": null, 
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				+   "metadata": { 
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				+    "collapsed": false 
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				+   }, 
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				+   "outputs": [], 
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				+   "source": [ 
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				+    "lines_list = text.split(\"\\n\")\n", 
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				+    "lines_list" 
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				+   ] 
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				+  }, 
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				+  { 
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				+   "cell_type": "code", 
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				+   "execution_count": null, 
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				+   "metadata": { 
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				+    "collapsed": false 
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				+   }, 
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				+   "outputs": [], 
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				+   "source": [ 
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				+    "days_counts = dict()\n", 
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				+    "count = 0\n", 
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				+    "\n", 
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				+    "for line in lines_list:\n", 
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				+    "    if count != 0:\n", 
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				+    "        split_line = line.split(\",\")\n", 
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				+    "        day_of_week = split_line[3]\n", 
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				+    "        num_births = int(split_line[4])\n", 
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				+    "        \n", 
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				+    "        if day_of_week in days_counts:\n", 
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				+    "            days_counts[day_of_week] = days_counts[day_of_week] + num_births\n", 
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				+    "        else:\n", 
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				+    "            days_counts[day_of_week] = num_births\n", 
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				+    "    if count == 0:\n", 
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				+    "        count += 1\n", 
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				+    "\n", 
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				+    "days_counts" 
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				+   ] 
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				+  } 
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				+ ], 
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				+ "metadata": { 
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				+  "anaconda-cloud": {}, 
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				+  "kernelspec": { 
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				+   "display_name": "Python [default]", 
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				+   "language": "python", 
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				+   "name": "python3" 
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				+  }, 
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				+  "language_info": { 
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				+   "codemirror_mode": { 
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				+    "name": "ipython", 
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				+    "version": 3 
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				+   }, 
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				+   "file_extension": ".py", 
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				+   "mimetype": "text/x-python", 
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				+   "name": "python", 
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				+   "nbconvert_exporter": "python", 
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				+   "pygments_lexer": "ipython3", 
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				+   "version": "3.4.5" 
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				+  } 
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				+ }, 
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				+ "nbformat": 4, 
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				+ "nbformat_minor": 0 
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				+} 
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