Get started in data science: 5 steps you can take online for free

Making a career change is never easy, but few things are more motivating than the prospect of a good salary and a dearth of competition. That's a fair summary of the data science world today, as at least one well-publicized study has made clear, so why not investigate a little further?There's been a flurry of free resources popping up online to help those who are intrigued learn more. Here's a small sampling for each step of the way.1. Understand what it isMicrosoft's website might not automatic