CECS 174 Project 5 - Due in lab on Tuesday, 11/4/03
One of the difficulties you had in Lab 4 was that the increments you made to a counter in a function seemed to
have no effect in the main function since the counter was a local variable in the function. In this project you are
to solve the problem using reference parameters (DO NOT use global variables). The specification of this
project extends from Project 4 to include finding the standard deviation of the scores. Write a C++ program
that reads in student scores. For each score it reads in, determine if the score is an A, B, C, D, or F, according to
the scale given below. Your program should also keep track of the number of students in each grade category,
and the average and standard deviation of all scores that the user inputs.
Grading scale:
A: score >= 90
B: 80 <= score < 90
C: 70 <= score < 80
D: 60 <= score < 70
F: score < 60
When your program executes, it should produce output as in the following sample dialogue:
Enter all scores below, one score per line. Press control-d when done.
55
Input score is 55.00, grade F
78.5
Input score is 78.50, grade C
98
Input score is 98.00, grade A
77
Input score is 77.00, grade C
80.55
Input score is 80.55, grade B
90
Input score is 90.00, grade A
Number of scores = 6
Average score = 79.84
Standard deviation = 13.30
Grade Number of Students
A 2
B 1
C 2
D 0
F 1
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