The result of hybrid classes was, as expected, more than half of the cohort cheating.
https://archive.is/SBOmV
https://news.bloomberglaw.com/litigation/villanova-cant-shake-covid-19-tuition-payments-class-action
https://law.justia.com/cases/federal/district-courts/pennsylvania/paedce/2:2023cv03897/614478/17/
Here is an example of what you'll be "learning":
https://quantivity.wordpress.com/2011/02/21/why-log-returns/