Charlie Kufs has been crunching numbers for over thirty years. He retired in 2019 and is currently working on Stats with Kittens, the prequel to Stats with Cats.

How to Describe Numbers

Say you wanted to describe someone you see on the street. You might characterize their sex, age, height, weight, build, complexion, face shape, hair, mouth and lips, eyes, nose, tattoos, scars, moles, and birthmarks. Then there’s clothing, behavior, and if … Continue reading

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Visualizations versus Infographics

Visualizations and infographics are both visual representations of data that are often confused. In fact, there is not a clear line of demarcation between the two. Both are informative. Both can be static or animated. Both require a knowledgeable person … Continue reading

How to Analyze Text

Statisticians love to analyze numbers, but what do they do when what they want to explore is unformatted text? It happens all the time. The text may come from open-ended responses on surveys, social networking sites, email, online reviews, public … Continue reading

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Top 50 Statistics Blogs And Websites on the Web

Number 28

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Hellbent on Measurement

Any variable that you record in a dataset will have some scale of measurement. Scales of measurement are, simply put, the ways that associated numbers relate to each other. Scales are properties of numbers, not the objects being measured. You … Continue reading

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Need to find something out, just Google it. Now that Google is a verb as well as a noun, it’s easy. But … It Hasn’t Always Been Easy Adults under 30, Millennials, grew up with smartphones, laptop and tablet computers, … Continue reading

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Predict the Next President of the United States

The American Statistical Association is sponsoring a new statistics contest for high school and college students. The contest, known as Prediction 2016, challenges students to use statistics to predict the next president of the U.S. The purpose of the contest … Continue reading

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Regression Fantasies

Common Reasons for Doubting a Regression Model Finding a model that fits a set of data is one of the most common goals in data analysis. Least squares regression is the most commonly used tool for achieving this goal. It’s … Continue reading

How to Write Data Analysis Reports in Six Easy Lessons

In every data analysis, putting the analysis and the results into a comprehensible report is the final, and for some, the biggest hurdle. The goal of a technical report is to communicate information. However, the technical information is difficult to … Continue reading

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Ten Ways Statistical Models Can Break Your Heart

Models are beautiful. The ways their features are combined sets them apart from each other.  Each has its own personality, sometimes pleasant, sometimes not, and often not what you would expect. Here are ten ways your love affair with statistical … Continue reading

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