Listing out all the "exit possibilities" could definitely work-- but you have to be careful, because not all the possibilities are equally likely. For example, it's a lot more likely to go from the start point, to the top left room, and then out through E (probability 1/3) than it is to go from the start point, down, down, left, and out through C (probability 1/12, as calculated in the solution). This is mainly because the second path is "longer."
So basically, when you list out all possible ways to exit, not all the paths are going to be equally likely to occur. That's why you can't just count the number of paths out of A, B, and C and divide by the number of paths out from anywhere. (To put it a different way, we can't treat it like the probability of choosing a green marble if we have 5 green marbles and 7 total marbles-- the marbles are different sizes, which implies that some are more likely to be chosen than others)
@fantasticcrow in these sample 100 days, there are 40 random days in which you wear the poodle shirt. Of those 40 days, there would still be the same 20% of (random) days that rain (and theoretically it would be exactly 20%), because you don't know when it is going to rain and it doesn't affect whether you decide to wear the poodle shirt or not on each day. Thus, there are, theoretically, 20% the 40 days you wear a poodle shirt will rain, or 8 days. Hope that helps, even though I have no idea what the problem is.
@dazzlingrobin I don’t think it’s possible to skip. You’ll have to randomly select answers for each of the videos and get at least 60% on the weekly challenges in order to continue. It shouldn’t take too long to do that. You can also contact the mods and see what they can do but that’ll probably take longer.
@tidyboar I do agree that there are a lot of windows to click through, and it can be inconvenient sometimes! Since we are using a third-party platform to host our courses, there unfortunately isn't much we can do to change the interface. But I will pass this along as a feature suggestion to the company that manages the site! 🙂 Thanks for your comment!
@divinedolphin That takes the fun out of it lol, also if the mods could get this to work we wouldn't need emails for weekly challenges which is good because who knows what could happen to it (mail is scary)