Data Analysis Journal

Data Analysis Journal

Machine Learning

Refresher on Statistics - Issue 237

Key statistical concepts often used in data analytics.

Olga Berezovsky's avatar
Olga Berezovsky
Dec 18, 2024
∙ Paid

Welcome to my Data Analytics Journal, where I write about data science and analytics.


Wrapping up the year with another “refresher”. This time, it’s about statistics - compiling all publications on statistics into one concise “take-home” guide.

Applying core statistics in analytics typically involves:

  1. Distributions

  2. Significance and Confidence

  3. Correlations and Regressions

  4. Causal inference

  5. Law of Large Numbers and Central Limit Theorem

This publication is targeted at analysts, data scientists, and product owners who work with data and ML products.

Why do we need statistics? To bring certainty and confidence

The whole purpose of statistics (statistical theory, methods, and analysis) is to provide certainty out of uncertainty. In other words, when you don’t have a high degree of trust (in either quantity or quality of data), how do you make sure you make the right decision?

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