15 Important Probability Concepts to Review Before Data Science Interview [Part 2]

Youssef Hosni
12 min readJan 13, 2024

Aspiring data scientists entering the realm of interviews often find themselves navigating a landscape heavily influenced by probability theory.

Probability is a fundamental branch of mathematics that forms the backbone of statistical reasoning and data analysis. Proficiency in probability concepts is not only a testament to analytical prowess but is also crucial for effectively solving complex problems in the field of data science.

In this two-part article, we’ll explore 15 important probability concepts that are frequently encountered in data science interviews. From foundational principles like probability rules and conditional probability to advanced topics such as Bayes’ Theorem and Markov Chains, a solid understanding of these concepts is indispensable for any data science professional.

Whether you’re preparing for an interview or simply seeking to deepen your knowledge, this comprehensive review will equip you with the essential tools to tackle probability-related challenges in the dynamic world of data science.

Table of Contents:

  1. Basic Probability Rules [Covered in Part 1]
  2. Conditional Probability [Covered in Part 1]

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