Answered: I need to write a Java program that…

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

I need to write a Java program that takes the names and grades of students and outputs their name, the letter grade, and the Z grade. For this program the letter grade is determined by the following cut-offs: A>=1.0, 1.0 > B>=0.0, 0.0 > C>=-1.0, -1.0 > D>=-2.0, -2.0 > F The z-score depends on the mean and the standard deviation. It is calculated by subtracting the population mean from an individual raw score and then dividing the difference by the population standard deviation. The student letter grade for the assignment is based on how many standard deviations away from the mean that student number grade is. Sample input and output is shown in the picture.

Sample input:
John Smith 75
Judy Smith 86
Mehdy Bohlool 72
John Terry 59
Marry Williams 100
Sample output:
Name
Score
Z Grade
John Smith
75 -0.25
C
Judy Smith
Mehdy Bohlool
John Terry
86
0.55
72 -0.46
59 -1.41
Marry Williams
100
1.56
A
Average 78.40

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