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 is

Microsoft's website might not automatically spring to mind as a likely place to look, but sure enough, a few months ago the software giant published a really nice series of five short videos entitled "Data Science for Beginners." Each video focuses on a specific aspect, such as "The 5 questions data science answers" and "Is your data ready for data science?"

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