{ "cells": [ { "cell_type": "markdown", "metadata": { "navigation": true }, "source": [ "\n", "< [Chapter 15. Missing Data and Other Opportunities](15-missing-data-and-other-opportunities.html) | [Chapter 17. Horoscopes](17-horoscopes.html) >" ] }, { "cell_type": "markdown", "metadata": {}, "source": [] }, { "cell_type": "markdown", "metadata": {}, "source": [ "