Book Image

Cracking the Data Science Interview

By : Leondra R. Gonzalez, Aaren Stubberfield
Book Image

Cracking the Data Science Interview

By: Leondra R. Gonzalez, Aaren Stubberfield

Overview of this book

The data science job market is saturated with professionals of all backgrounds, including academics, researchers, bootcampers, and Massive Open Online Course (MOOC) graduates. This poses a challenge for companies seeking the best person to fill their roles. At the heart of this selection process is the data science interview, a crucial juncture that determines the best fit for both the candidate and the company. Cracking the Data Science Interview provides expert guidance on approaching the interview process with full preparation and confidence. Starting with an introduction to the modern data science landscape, you’ll find tips on job hunting, resume writing, and creating a top-notch portfolio. You’ll then advance to topics such as Python, SQL databases, Git, and productivity with shell scripting and Bash. Building on this foundation, you'll delve into the fundamentals of statistics, laying the groundwork for pre-modeling concepts, machine learning, deep learning, and generative AI. The book concludes by offering insights into how best to prepare for the intensive data science interview. By the end of this interview guide, you’ll have gained the confidence, business acumen, and technical skills required to distinguish yourself within this competitive landscape and land your next data science job.
Table of Contents (21 chapters)
Free Chapter
1
Part 1: Breaking into the Data Science Field
4
Part 2: Manipulating and Managing Data
10
Part 3: Exploring Artificial Intelligence
16
Part 4: Getting the Job

Summary

In the first half of this chapter, we established the critical role of data visualization and storytelling in the field of data science. Beginning with an overview of why data visualization is crucial, we delved into a framework for choosing the right visualization based on data types and the goal of communication. We explored a variety of data visualization types, such as bar charts, pie charts, histograms, scatter plots, and box plots, discussing their use cases, creation processes, and tips for enhancing their storytelling power. Additionally, we analyzed various visualization tools, including Power BI, Tableau, R’s Shiny, Python’s Matplotlib, and Seaborn, providing insights into their advantages, limitations, and ideal use cases.

The latter part of this chapter focused on the practical aspects of data visualization and storytelling. We covered the best practices for creating effective dashboards, reports, and KPIs, emphasizing clean, uncluttered visuals...