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  • Book Overview & Buying Cracking the Data Science Interview
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Cracking the Data Science Interview

Cracking the Data Science Interview

By : Leondra R. Gonzalez, Stubberfield
4.7 (6)
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Cracking the Data Science Interview

Cracking the Data Science Interview

4.7 (6)
By: Leondra R. Gonzalez, 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)
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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

Using string operations

String operations are very common when working with Python and text data. Therefore, this section will review how to initialize a string, string indexing/slicing, and some common string methods.

Note

We will not review string regular expressions, as this is a large topic with significant depth. Check out Mastering Python Regular Expressions by Victor Romero and Felix L. Luis for more instructions on this topic.

Initializing a string

Python allows for string initialization (creation) in several ways. Two ways include single quotes ('') and double quotes (""):

# Single quotes
s = 'Hello, World!'
print(s)  # prints: Hello, World!
# Double quotes
s = "Hello, World!"
print(s)  # prints: Hello, World!

Single and double quotes are basically interchangeable. The only difference comes into play when you have a quote mark (single or double) inside a string. For example, one common scenario is...

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Cracking the Data Science Interview
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