openintro - SERP Analysis

https://www.openintro.org/

https://leanpub.com/openintro-statistics

https://www.amazon.com/OpenIntro-Statistics-Fourth-David-Diez/dp/1943450072

https://open.umn.edu/opentextbooks/textbooks/60

https://cran.r-project.org/package=openintro

http://www.openintro.info/stat/labs.php

https://github.com/openintrostat

https://store.macmillanlearning.com/us/product/Achieve-Essentials-for-OpenIntro-Statistics-1-Term-Access/p/1319534325?srsltid=AfmBOop16zylbThKAlEoASZH8-K5K_M4ufVIjyzv57cY4CE3hfbniNJV

https://openintrostat.github.io/ims-tutorials/

http://www.openintrocc.statgrad.com/