https://discussions.udacity.com/t/project-confusion-regarding-unit-of-diversion/206784/2

https://discussions.udacity.com/t/unit-of-diversion/179147

https://discussions.udacity.com/t/what-exactly-are-units-of-diversion-and-invariant-metrics/161779

https://discussions.udacity.com/t/final-project-hypothesis/37176

https://discussions.udacity.com/t/good-invariant-or-evaluation-metrics-number-of-cookies-number-of-clicks-and-number-of-user-ids/166758/12

https://discussions.udacity.com/t/getting-and-using-baseline-values/41858

http://stattrek.com/probability-distributions/binomial.aspx

https://discussions.udacity.com/t/calculating-standard-deviation-what-are-these-metrics-in-our-analysis/241642/2

https://github.com/nehal96/A-B-Testing-Udacity

https://vwo.com/blog/how-to-calculate-ab-test-sample-size/

https://en.wikipedia.org/wiki/Bonferroni_correction

https://discussions.udacity.com/t/final-project-choosing-duration-and-exposure/26647

https://discussions.udacity.com/t/final-project-choosing-duration-and-exposure/44049

https://discussions.udacity.com/t/final-lesson-duration-and-exposure-no-idea-how-to-progress/163802/3

https://discussions.udacity.com/t/sanity-checks-confidence-intervals-observed-values/27175/50

https://discussions.udacity.com/t/regarding-practical-and-statistical-significance/200857/2