I'm trying to make a for loop question that presents students with a different start, end, and interval each time they take the quiz. I tried following your Select last {{n}} items from a list. randomisation question example, but I don't know what programming language is used in the Template params box, so it's hard for me to figure out what each line of code means.
I've attached the question prototype I've created, along with an example of what I'm trying to accomplish that is not randomized, and my most recent attempt at a randomized question. Currently the expected output appears to be an empty array, which of course is not what I'm trying for.