Choosing the Correct Statistical Test
In a previous blog post, I created a flow chart showing how to choose a statistical test from a dozen different tests. While researching the… Read More »Choosing the Correct Statistical Test
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Stephanie Glen
Lognormal, Weibull, and Gamma distribution in One Picture
At first glance, the Lognormal, Weibull, and Gamma distributions distributions look quite similar to each other. Selecting between the three models is “quite difficult” (Siswadi &… Read More »Lognormal, Weibull, and Gamma distribution in One Picture
Statistical Uncertainty: Why are Covid-19 Figures so Varied?
If you’ve been keeping up on the statistics for Covid-19 in the last week (and who hasn’t?), you’ve probably noticed a wide variety of projections… Read More »Statistical Uncertainty: Why are Covid-19 Figures so Varied?
Understanding Covid-19 Statistics (in plain English)
My original intent with this article was to write about how to understand statistics in general. However, with the global pandemic on everyone’s minds right… Read More »Understanding Covid-19 Statistics (in plain English)
Different Probability Distributions in One Picture
Data science uses many different probability distributions, but some are used more than others. This one picture shows an overview of five probability distributions data… Read More »Different Probability Distributions in One Picture
Likely, unlikely, certain and impossible
I live in Jacksonville, Florida, where the odds of a hurricane on any given day are “improbable“. But does that mean I shouldn’t stock up… Read More »Likely, unlikely, certain and impossible
Supervised Learning vs Unsupervised & Semi Supervised in One Picture
Machine learning algorithms learn in three ways: unsupervised, supervised, and semi supervised. This picture illustrates the differences between the three types. Related Articles Association Clustering… Read More »Supervised Learning vs Unsupervised & Semi Supervised in One Picture
Best Resources to Learn Statistics (for Free!)
You don’t have to take college classes to learn statistics. If you just want some basic information about a particular statistical topic, then StatisticsHowTo.com is… Read More »Best Resources to Learn Statistics (for Free!)
Difference between Data Analysis and Statistical Analysis
Fifty years, ago, the lines between “data analysis” and “statistical analysis” were pretty clear. But as data analysis evolved, those lines became blurred. The differences… Read More »Difference between Data Analysis and Statistical Analysis
Best Languages for Data Science and Statistics in One Picture
Hundreds of programming languages dominate the data science and statistics market: Python, R, SAS and SQL are standouts. If you’re looking to branch out and… Read More »Best Languages for Data Science and Statistics in One Picture