Kick off your book project in 2 hours, get started with GhostAI in 2 hours, or do both! Free live workshops, on Zoom. You’ll leave with a real book project and a clear plan to keep going. Saturday, June 27, 2026.

Leanpub Header

Skip to main content

Applied Statistics for Data Science

from visual diagnostics to drift detection

This book is 40% completeLast updated on 2026-06-18

Launch Price $9.99 Special! — price will increase as I plan to steadily add more chapters over the coming weeks.

Minimum price

$9.99

$24.99

You pay

Author earns

$

Also available for 1 book credit with a Reader Membership

PDF
EPUB
145
Pages
About

About

About the Book

Applied Statistics for Data Science is a practical guide to the statistical foundations every analyst and researcher needs to work confidently with real‑world data.

Instead of overwhelming readers with theory, this book builds understanding through visual intuition, simulation and accompanying hands‑on Python notebooks.

For details, check out my new site at: qikly.com

What You Will Learn

- Build a strong foundation in probability models, distribution families, and statistical intuition

- Understand sampling, estimators, and the core ideas behind uncertainty and variability

- Perform hypothesis tests, group comparisons, and regression diagnostics to support sound statistical reasoning

- Design experiments, sampling strategies, and resampling‑based inference workflows

- Detect and monitor data drift using both parametric and nonparametric methods

- Analyze survival curves, reliability patterns and time‑to‑event behavior in dynamic systems

Author

About the Author

Gal Arav

For more about my work, visit my new site at qikly.com Gal Arav is a data scientist with a wide‑ranging career spanning industry, research and entrepreneurship. He has worked on data‑intensive projects at NASA, Google, Verizon, AT&T, and General Motors. Most recently, he managed one of GM's EV battery laboratories to prevent thermal runaway and fire hazards using machine learning algorithms and previously led data science work for autonomous vehicle triage and simulation. His contributions at GM earned him the company’s Critical Technical Talent Award.

Earlier in his career he founded an internet‑based market research company that was featured in Barron’s and Bloomberg Businessweek, and later went on to explore fintech, working as a quantitative researcher in global currency markets. His work with NASA included developing and installing eye‑tracking systems at Langley Research Center. He also collaborated on fMRI medical research at leading hospitals and with Cornell and Duke Universities as part of his work at Applied Science Laboratories, a pioneering eye‑tracking company founded by two MIT professors. Another highlight was his onsite work at AT&T’s Kansas headend facility, where he integrated award winning video processing algorithms for cable broadcasting services he developed.

Gal holds a master’s degree in applied mathematics from Tel Aviv University, specializing in Operations Research and Decision Theory. He is deeply curious about the rapid evolution of machine learning and artificial intelligence and has a keen interest in how ideas and actions across history have shaped the course of human progress. Outside of work he enjoys tennis, swimming, climbing and hiking with his kids and dog.

Contents

Table of Contents

  • Part I: Foundations
    • Chapter 1: Random Events, Variables & Probability Modeling — Random Events & Variables; Introduction to Probability Distributions; Populations and Samples; Core Probability Distributions
    • Chapter 2: Distribution Families & Shapes — Bounded and Unbounded Support; One-, Two-, and Three‑Parameter Distributions; Comparing Distributions; Multivariate Relationships
    • Chapter 3: Sampling & Estimators — Statistical Inference; Estimation & Uncertainty; Simulation Data; Sampling Distributions; Exact Distributions; Estimator Behavior; Variability & Error
  • Part II: Core Statistical Tools
    • Chapter 4: Hypothesis Testing & Statistical Comparison Methods — Hypothesis Testing; Classical Tests; Group Comparisons; Association Measures
    • Chapter 5: Regression & Prediction Diagnostics — ML Model Types; Modeling Overview; Classification Metrics; Regression Diagnostics; Model Fit; Statistical Error; ML Context Diagnostics
    • Chapter 6: Sampling Designs & Experiments — Sampling Designs; Representativeness; Model Evaluation; Experiments; A/B Testing; Power & Effect Sizes
    • Chapter 7: Resampling & Permutation-Based Inference — Bootstrap; Jackknife; Permutation Tests; Method Comparison
  • Part III: Drift, Reliability & Temporal Behavior
    • Chapter 8: Nonparametric Drift Detection & Monitoring — Datasets; Drift Tests; Monitoring; Permutation Tests; Method Comparison; Advanced Drift Detection
    • Chapter 9: Parametric Drift Detection & Monitoring — Parametric Distributions; Model Selection; Evaluation; Drift Signals; Tail Behavior; Reliability Impact; Monitoring
    • Chapter 10: Survival Curves & Reliability Modeling — Reliability Foundations; Survival Essentials; Hazard Insights; Failure Risk; Operational Decisions

Get the free sample chapters

Click the buttons to get the free sample in PDF or EPUB, or read the sample online here

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

See full terms...

Earn $8 on a $10 Purchase, and $16 on a $20 Purchase

We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub