Why is my MIN function ignoring 0?

Thank you!

So turns out my original expression techincally works - a variation of the one you provided above also works too.

HOWEVER! It seems the problem is actually something within Power BI table behaviour - if I look at raw scores within a table, these do show that some individuals have a MIN score of 0, however, when they're summarized into a group within a table, it shows 1 as the MIN value. Do you understand the logic for this?

Screenshot below shows an example of a group with 4 people in it - with row level detail on the right that shows that some of these people do indeed have a MIN of 0.