Category: mathematics
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Hypothesis testing basics
A simple example of hypothesis testing is where we know what “normal” is, and we want to evaluate whether some sample conforms to our understanding of “normal”, or is so unusual that it’s indicative of an actual shift in behaviour or pattern. Make your hypothesis statement If I…(do this to an independent variable)….then (this will…
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Preliminary terrors of statistics
The “preliminary terrors“, of course, being the notation as Silvanus P. Thompson so aptly described them :). Pronunciation μ sounds like “mew” σ sounds like “sigma” x̄ sounds like “x-bar” The population So we can think of this as the complete set of “things”, whatever the “things” are that are under consideration – for example…
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Bayes theorem – a worked example
So I found this quite a mind-bender, although I believe this is part and parcel of the typical high-school maths syllabus now! Here is my stab at understanding the theorem and how it relates to a real-life example… Problem wording: Jane witnessed a robbery in which a car was involved. It is known that 1…
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Calculus made easy (really)
For some reason I didn’t expect someone writing in 1910 to have such a wonderful sense of humour – most books from this time seemed…
Sho't left to data science 