Resources
A few links which I find useful or interesting:
Lecture notes
Open courses and ebooks
H. Pishro-Nik. Introduction to probability, statistics and Random Processes
D. Speegle and B. Clair, Probability, Statistics, and Data: A fresh approach using R
https://openintro-ims.netlify.app/index.htmlMine Cetinkaya-Rundel, Johanna Hardin, Introduction to Modern Statistics
Kyle Siegrist, Probabilidad, estadística matemática y procesos estocásticos.
Blogs
Almost Sure (George Lowther's blog)
Research and Lecture Notes (Fabrice Baudoin's blog).
Common statistical tests are linear models (or: how to teach stats) (Jonas Kristoffer Lindeløv)
Other resources
Vídeos inferencia estadística (Felix Luis Belzunce Torregrosa):
Inferencia estadística para una variable con distribución Gumbel
Comparación de medias para más de dos poblaciones (Anova) II
Vídeos fundamentos de estadística (Roberto Espejo Mohedano):