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Exam 1 Part 1

Intro to Data Science

QuestionAnswer
What are the roles of a data scientist? engineer/developer, data engineer, database admin, big data specialist, researcher, analyst, manager in executive business, full stack data scientist (unicorn)
What are the steps of a collaborative project? planning, data preparation, modeling, follow up
What is included in the 1st step of project? define goals, organize resources, coordinate people, scheduling
What is included in the 2nd step of the project? find, clean, explore, and refine data
What is included in the 3rd step of the project? create, validate, and evaluate the model
What is included in the 4th step of the project? present, deploy, and revisit the model. Archive assets.
How would you compare the importance of technical vs. domain skills? Technical deals with the programming, database and systems administration, cloud management, big and distributed data. While domain deals with the management side, project management, budgeting, business development, governance and compliance.
What is velocity in big data? Data is being generated very quickly. Must decide how to process the data, and whether to keep or toss the data.
What is the overlap between big data and data science? Volume, velocity, and variety
Why is Python and R the most used languages for data science? Open-source, ease-of-use, simple syntax with small learning curve, variety of pre-built packages and libraries tailored to data science analysis and visualization
What is the difference between a data scientist and a statistician? DS is a multidisciplinary field that joins statistics with programming in an applied setting
Created by: amhhh
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