Consider a grade-averaging scheme in which the final average of a student's scores is computed differently from the traditional average if the student has completed a make-up assignment: drop the lowest score and compute the new average. The following table shows several example scores and how they would be average using the scheme described above. Student Scores Make-Up Completed? Final Average 50, 50, 20, 80, 53 No (50 + 50 + 20 + 80 + 53)/5.0 = 50.6 30, 80, 85, 87 Yes (80 + 85 + 87)/3.0 = 84.0 75, 85, 10, 60, 90 Yes (75+ 85+ 60 + 90)/4.0 = 77.5 Consider the following incomplete studentRecord class. Each studentRecord object stores a list of that student's scores and contains methods to compute that student's final average. public class StudentRecord { private int [] scores; // contains scores.length values // scores.length > 1 // constructors and other data fields not shown // returns the average (arithmetic mean) private double average (int [] scores) { /* implementation not shown */ } // returns true if the student has completed a make-up private boolean makeUpCompleted () { /* implementation not shown */ } // if the student has completed the make-up, return the // average of all numbers except the lowest one; // otherwise, return the average of all numbers public double finalAverage () // your code goes here Write the studentRecord method finalAverage (). You MUST call the methods average () and makeUpCompleted () in the £inalAverage () method.
Consider a grade-averaging scheme in which the final average of a student's scores is computed differently from the traditional average if the student has completed a make-up assignment: drop the lowest score and compute the new average. The following table shows several example scores and how they would be average using the scheme described above. Student Scores Make-Up Completed? Final Average 50, 50, 20, 80, 53 No (50 + 50 + 20 + 80 + 53)/5.0 = 50.6 30, 80, 85, 87 Yes (80 + 85 + 87)/3.0 = 84.0 75, 85, 10, 60, 90 Yes (75+ 85+ 60 + 90)/4.0 = 77.5 Consider the following incomplete studentRecord class. Each studentRecord object stores a list of that student's scores and contains methods to compute that student's final average. public class StudentRecord { private int [] scores; // contains scores.length values // scores.length > 1 // constructors and other data fields not shown // returns the average (arithmetic mean) private double average (int [] scores) { /* implementation not shown */ } // returns true if the student has completed a make-up private boolean makeUpCompleted () { /* implementation not shown */ } // if the student has completed the make-up, return the // average of all numbers except the lowest one; // otherwise, return the average of all numbers public double finalAverage () // your code goes here Write the studentRecord method finalAverage (). You MUST call the methods average () and makeUpCompleted () in the £inalAverage () method.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
![Consider a grade-averaging scheme in which the final average of a student's scores is computed differently
from the traditional average if the student has completed a make-up assignment: drop the lowest score and
compute the new average.
The following table shows several example scores and how they would be average using the scheme
described above.
Student Scores
Make-Up Completed?
Final Average
50, 50, 20, 80, 53
No
(50 + 50 + 20 + 80 + 53)/5.0 = 50.6
30, 80, 85, 87
Yes
(80 + 85 + 87)/3.0 = 84.0
75, 85, 10, 60, 90
Yes
(75+ 85+ 60 + 90)/4.0 = 77.5
Consider the following incomplete studentRecord class. Each studentRecord object stores a list of that
student's scores and contains methods to compute that student's final average.
public class StudentRecord
{
private int [] scores; // contains scores.length values
// scores.length > 1
// constructors and other data fields not shown
// returns the average (arithmetic mean)
private double average (int [] scores)
{ /* implementation not shown */ }
// returns true if the student has completed a make-up
private boolean makeUpCompleted ()
{ /* implementation not shown */ }
// if the student has completed the make-up, return the
// average of all numbers except the lowest one;
// otherwise, return the average of all numbers
public double finalAverage ()
// your code goes here
Write the studentRecord method finalAverage (). You MUST call the methods average () and
makeUpCompleted () in the £inalAverage () method.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9494c96c-1a88-45c9-9397-2d19977fd7d8%2F02231bc8-d1f8-4f50-a0bb-0d8a004f63b8%2Fudrow59_processed.png&w=3840&q=75)
Transcribed Image Text:Consider a grade-averaging scheme in which the final average of a student's scores is computed differently
from the traditional average if the student has completed a make-up assignment: drop the lowest score and
compute the new average.
The following table shows several example scores and how they would be average using the scheme
described above.
Student Scores
Make-Up Completed?
Final Average
50, 50, 20, 80, 53
No
(50 + 50 + 20 + 80 + 53)/5.0 = 50.6
30, 80, 85, 87
Yes
(80 + 85 + 87)/3.0 = 84.0
75, 85, 10, 60, 90
Yes
(75+ 85+ 60 + 90)/4.0 = 77.5
Consider the following incomplete studentRecord class. Each studentRecord object stores a list of that
student's scores and contains methods to compute that student's final average.
public class StudentRecord
{
private int [] scores; // contains scores.length values
// scores.length > 1
// constructors and other data fields not shown
// returns the average (arithmetic mean)
private double average (int [] scores)
{ /* implementation not shown */ }
// returns true if the student has completed a make-up
private boolean makeUpCompleted ()
{ /* implementation not shown */ }
// if the student has completed the make-up, return the
// average of all numbers except the lowest one;
// otherwise, return the average of all numbers
public double finalAverage ()
// your code goes here
Write the studentRecord method finalAverage (). You MUST call the methods average () and
makeUpCompleted () in the £inalAverage () method.
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