{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "I just followed John Hopkin's Executive Data Science team. In the [first chapter of the course](https://www.coursera.org/learn/data-science-course/lecture/X4Z9T/what-is-data-science) Jeff Leek said," ] }, { "cell_type": "markdown", "metadata": {}, "source": [ ">