Hello there.
It seems like the SpeakerDeck slides in the Create a Regression Model with Azure Machine Learning designer workshop is there by mistake as I believe it is quite unnecessary. In my attempt to follow through with the workshop, I noticed that the slides are quite useless and even made the conclusion that the slides was mistakenly put there.
The slides named SpeakerDeck is a COVID Paper Exploration and as opposed the Microsoft Learn slides tagged Powerpoint was not helpful in explaining the process for the workshop.