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A teacher determines a student's course grade by computing the mean of 4 scores:
3 unit test scores and the final exam score.
If a student misses a unit test, the final exam score is used once as the final exam score
and once in place of the missing unit test score.
What is the course grade for a student who receives scores of 76 and 80 on 2 unit tests,
misses 1 unit test, and earns a score of 72 on the final exam?
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As described in the problem, the teacher uses THESE scores
1-st unit 2-nd unit scores of the final exam scores of the final exam
test test to replace the missed test
76 80 72 72
So add the four numbers; then divide by 4.
Having these clear instructions, complete the solution on your own.
Happy calculations (!)