You've been hired as a TA for a course, and want to automate your handling of student grades. The gradebook entry for each student store the student's name, 5 numeric grades (hwk1, hwk2, hwk3, midterm, final), and a final letter course grade. A gradebook contains a gradebook entry for each student in the class.
Develop a data definitions and examples of data for gradebooks.
Write the template for programs over gradebooks.
Write a function names-with-grade that consumes a
gradebook and a course (letter) grade and returns a list of names of
students who have the given letter grade as a course grade.
Professors send reports to the registrar's office that
show each student's name and course (letter) grade. Write a data
definition for reports, then write a function
produce-report that consumes a gradebook and produces
a report showing each student's name and course grade.
Write a function any-missing-midterm? that consumes
a gradebook and returns a boolean indicating whether any student has a
score of 0 on the midterm.
Everyone should be able to finish up to this point
Write a function count-high-hwk that consumes a
gradebook and returns the number of students who have grades above 85
on all three homeworks.
Write a function compute-course-grades that
consumes three numbers (explained below) and a gradebook and produces
a gradebook. The produced gradebook should have the same data as the
input gradebook except for the course grade. The course grade should
be computed by weighting each homework as 15%, the midterm as 25%, and
the final as 30% (assume all grades are out of 100 points), then
converting the result to a letter grade. The three number inputs are
the cutoffs for A, B, and C grades, respectively. Students get the
highest grade for which they have at least the corresponding cutoff,
or an NR if they are below all of the cutoffs. Assume the cutoff for
A is higher than for B and the cutoff for B is higher than for C.