Best of Statistics — September 2024

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   Article

   Medium·2y

   An Introduction to Bayesian A/B Testing

   A/B testing, also known as split testing, helps businesses optimize conversion rates by experimenting with different webpage versions. The post compares frequentist and Bayesian methods for analyzing A/B test results. It highlights the limitations of the Chi2 test in frequentist settings and demonstrates Bayesian modeling using Python's PyMC package. A more complex example of modeling customer behavior post-intervention showcases Bayesian flexibility in uncertain data scenarios. Bayesian inference is advocated for its intuitive interpretation and adaptability, especially when data is sparse and uncertainty modeling is crucial.

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   Article

   Exceptional Frontend·2y

   We're the number 3 Web squad on Daily.Dev

   The Daily.Dev team has launched squads, enabling better organization of communities by categories like Career, Mobile, and AI. By chance, one squad is now the third most followed in the Web category. This highlights how statistics can be manipulated to present different perspectives and serves as a reminder to critically evaluate data. A call to support the new feature on Product Hunt is also included.

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   Article

   Community Picks·2y

   Bayes theorem, and making probability intuitive – by 3Blue1Brown

   Grant Sanderson from the 3Blue1Brown YouTube channel offers a visual and intuitive explanation of Bayes theorem. Using an example from Daniel Kahneman and Amos Tversky’s book 'Thinking Fast, Thinking Slow,' he demonstrates how people often misjudge probabilities based on descriptive details instead of statistical realities. Sanderson suggests that drawing probability contexts visually can be more effective than memorizing the theorem.

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   Video

   3Blue1Brown·2y

   A cute probability fact (part 2)

   Discusses a probability concept using random values chosen from a uniform distribution within the interval of 0 to 1. It explains how to visualize pairs of these values as points in a two-dimensional space and examines conditions for the maximum value of the pair to be a specific number.

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   Article

   Lobsters·2y

   Python Programmers’ Experience

   The Python Developers Survey 2023 data on professional experience levels of Python programmers was poorly represented. The correct visualization, which uses appropriately scaled bar charts, shows an exponential growth rate of 10-25% per year in the Python workforce. This suggests that the Python programming community doubles in size every four years, significantly impacting hiring practices.

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   Article

   Hacker News·2y

   Eliya-G/coffee-o-clock: A clock that let's you understand if you should have another cup of coffee.

   This project aims to help users decide whether to have another cup of coffee by providing statistics about their caffeine levels and potential impact on sleep. It allows users to enter custom caffeine ingestion amounts and sleep times and is built with Python 3.12.5. The script assumes a healthy, genetically typical individual with an awareness of their own caffeine tolerance.

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   Article

   Towards Data Science·2y

   Bayesian Linear Regression: A Complete Beginner’s guide

   This guide provides a comprehensive workflow and code walkthrough for building a Bayesian linear regression model using STAN, a probabilistic programming language. It covers generating data, structuring the model string in STAN, specifying priors, and generating quantities for model evaluation. The tutorial emphasizes the importance of defining proper priors and model evaluation metrics like the WAIC score. It also hints at further exploration into Bayesian hierarchical models.

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