Step to reproduce:

1. Create Quiz 1 (1 question/grade 100).
2. Create Quiz 2 (2 questions/grade 50 each question, total grade: 100).
3. Set activity completion for both quizes: Add requirements>Receive a grade>Any grade
4. Set up course completion: 
   • Condition: Activity completion: select both quizes.
   • Condition: Course grade: Required course grade: 80
5. Use a learner account to complete Quiz 1 and get 100 grade.
6. Check completion report, learner pass Q1 and pass course required grade.

Issue:

User get 100 in quiz 1, however they do not pass quiz 2 but the course grade is pass as it use the grade in quiz 1 only

Expected:

It should use the mean grade of quiz 1 and quiz 2