You are testing a system that calculates the final course grade for a given student. The final grade is assigned based on the final result, according to the following rules:•0 – 50 points: failed
•51 – 60 points: fair
•61 – 70 points: satisfactory
•71 – 80 points: good
•81 – 90 points: very good
•91 – 100 points: excellent
You have prepared the following set of test cases:
(含图)
What is the 2-value boundary value analysis (BVA) coverage for the final result that is achieved with the existing test cases?