Best of Statistics — December 2024

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   Article

   R-bloggers·1y

   Death rates by cause of death by @ellis2013nz

   The post discusses the disparities in life expectancy relative to health expenditure across different countries, highlighting that the USA has low life expectancy despite high health spending. It underscores that factors such as malnutrition, obesity, poor housing, unsafe water, and high rates of suicide and violent deaths significantly impact life expectancy. Additionally, it presents data showing cause-specific death rates and compares them to countries with higher life expectancy to identify key areas where the USA lags behind.

   13

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2. 2
   Article

   Towards AI·1y

   Master A/B Testing the Smart Way: Stand Out in Data Interviews

   A/B testing is a vital tool in data-driven product development and is frequently discussed in data science interviews. This structured guide explains A/B testing through an example involving Spotify's recommendation algorithm, covering steps like understanding the business problem, identifying key metrics, formulating hypotheses, setting experiment parameters, designing the experiment, running and validating the test, interpreting results, and making launch decisions. By following these steps, organizations can confidently innovate and enhance user experiences.

   10
3. 3
   Article

   Medium·1y

   AI Math: The Bias-Variance Trade-off in Deep Learning

   The post explores the bias-variance trade-off in deep learning and its complexity compared to classical statistics. It delves into methodologies like the German Tank Problem to explain the concepts of bias and variance. It also discusses the importance of robust machine learning models, the role of sufficient statistics, and provides examples using Generalised Linear Models. Techniques for improving model robustness and handling overfitting and underfitting are discussed, along with the relevance of validation and test sets.

   10

   1