# Counting correct answers using total

I’m making a screen where the questions change. I want students to get three right before moving on, so I found an example where this is done using a numberlist to list 1’s for correct answers and 0’s for incorrect, then the function total in a graph to sum them up so I know how many correct answer they had so far.
Sadly, I can’t get it to work. I checked the variable correct - it works fine, giving 1’s and 0’s when it should. I even checked the strategy on another screen, to make sure I didn’t miss an important step- it worked. It just doesn’t work all together.
It happened on the two screens I tried this on.
Help?

edit:
the correct answers by order of question, so you don’t need to think:
screen 1: 1. k=-3.091 k=3.112
2. -3.872<k<1.981
3. k<-2.397 5.76<k
4. -3.727<k<-1.183
5. k=0 k=1.617
6. 3.983<k<6.535 -1.579<x<0
7. k=1.17
8. k=0.941 k=0
9. 0.282<k -3.927<k<0

screen 2: 1. -5, 1, 4
2. -4, -2, 1, 5
3. -7, -4, 1, 4
4. -1, 1, 5
5. -4, 2, 6
6. -6, -4, 2, 6
7. -6, -3, 2, 6
8. -4, 2, 5
9. -6, -1, 3