"Every business collects data, and it's the job of the data scientist to analyze, interpret, and communicate that information in a way that will help drive company decisions. In an interview, expect to answer technical questions about your ability to perform quantitative tests as well as create clear visualizations of large, complex data sets. Come ready to discuss past projects you've worked on and how you communicate data findings clearly and concisely in order to help solve business-related problems."
Data science : I had a graph showing different step were a client is interested by microsoft product to the real buying act. If you have a dataset of previous clients who bought/didn't buy, how to make prediction for new clients ?