University of Wisconsin–Madison

Tag: statistics

Data Correlation and the Simpson Paradox

Summary Simpson’s paradox is a fascinating statistical phenomenon where the observed relationship between two variables can be reversed when the data is divided into subgroups. For biologists and biochemists, this means that the correlation between two biological variables might change direction when considering an additional categorical variable, such as a specific species or experimental condition. …

Is p-value hacking reverse statistics?

Summary P-value hacking is the process of manipulating or analyzing data in a way that increases the likelihood of obtaining statistically significant results. I used 4 different AI chatbots to obtain an explanation with examples. Statistics This story came about when I watched a short video titled “Teach me STATISTICS in half an hour! Seriously.” …

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Becoming a Data Scientist If you are interested to become a data scientist, the following free resources and books would be very helpful. Free books using R These and other books aan be accessed for free on bookdown.org (Note: bookdown is the software used to edit them.) Free books on using Python Free books on …

w3schools code tutorials

w3schools: Learn to Code On the w3schools site I was surprised to find a lot more than informational tutorial for Web coding such as CSS or PHP.  The site offers a large number of well organized,  self-paced tutorials on a much larger scale. Coding languages Here are a few that I find particularly useful to …

How to spot a misleading graph?

As biochemists and biologists, like all scientists we convey results in the form of graphs. We also read papers that present results. More generally graphs are used in many aspects of every day news… The following YouTube video from Ted-Edย shows stunning examples on how our perception can be manipulated when graphs are created with obvious …