If you've heard about Data Science but don't really understand what it's all about, you might want to check out the 5-part video series Data Science for Beginners presented by my colleague Brandon Rohrer, senior data scientist at Microsoft. Each video is short (5-10 minutes) and explains an aspect of data science without any assumed knowledge or technical jargon. The videos are embedded below (follow the links for a transcript and additional details). If you're puzzled by predictive models, check out Video 4 in particular, where Brandon explains the linear regression model (and confidence intervals!) without using a single equation. To try some of the models out yourself, Video 5 explains how to search the Cortana Intelligence Gallery to find pre-built experiments implementing techniques you may be interested in.
Video 1: The 5 questions data science answers
Video 2: Is your data ready for data science?
Video 3: Ask a question you can answer with data
Video 4: Predict an answer with a simple model
Video 5: Copy other people's work to do data science