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

Mining Data with Probability and Statistics

In this chapter, you will be introduced to the vital world of statistics, which serves as the foundation of applied data science. An understanding of these concepts is crucial for drawing meaningful conclusions and making informed decisions and predictions from data. This knowledge is not just an intellectual exercise; it equips you with essential tools to excel in advanced data science interviews by allowing you to uncover hidden insights within datasets.

This chapter will guide you through the essential aspects of classical statistics, including the analysis of populations and samples, measures of central tendency and variability, and the intriguing realms of probability and conditional probability. You’ll also explore probability distributions, the central limit theorem (CLT), experimental design, hypothesis testing, and confidence intervals. This chapter concludes with a focus on regression and correlation, giving you comprehensive...