September 2026
Beginner
352 pages
9h 24m
English
Content preview from Grokking Statistics
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2 Meet your data!
In this chapter
- Understanding data and what it represents
- Understanding the relationship between a sample and a population
- Common measures used when describing data
In statistics, we’re often interested in structured data, typically tabular data, for use with analysis tools such as pandas and Excel. Unstructured data, such as documents, audio, or images, where each pixel acts as a variable (or three variables, if you count the RGB values), is often impractical for manual statistical analysis because of the sheer number of variables involved. Such data is best left to perceptual models, such as deep learning and large language models. Statistics play a significant role in these models, but in a way that’s largely inaccessible ...
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