Step 1 :Calculate the contribution of the midterm to the final grade: \(62 \times 0.15 = 9.3\)
Step 2 :Calculate the contribution of the project to the final grade: \(80 \times 0.15 = 12\)
Step 3 :Calculate the contribution of the homework to the final grade: \(83 \times 0.35 = 29.05\)
Step 4 :Calculate the contribution of the final exam to the final grade: \(63 \times 0.35 = 22.05\)
Step 5 :Add all these contributions together to get the overall final score: \(9.3 + 12 + 29.05 + 22.05 = 72.4\)
Step 6 :\(\boxed{\text{So, the student's overall final score is 72.4.}}\)
Step 7 :\(\boxed{\text{The student earned a C.}}\)