I need help with an assignment. I am confused as to if the manual is asking to implement and modify the java code provided to us or create one following the code written in the java file provided. So please help me figure that out and provide with a sultion. Rest of the instruction manual is attatched in the images. I am pasting the java code provided to me below.java code provided to me as mentioned in step 1 of manual. package homework;// ComputeMeanDeviation.java: Demonstrate using the math methodspublic class ComputeMeanDeviation { /** Main method */ public static void main(String[] args) { int count = 10; // Total numbers int number = 0; // Store a random number double sum = 0; // Store the sum of the numbers double squareSum = 0; // Store the sum of the squares // Create numbers, find its sum, and its square sum for (int i = 0; i < count; i++) { // Generate a new random number number = (int)(Math.random() * 1000); // Add the number to sum sum += number; // Add the square of the number to squareSum squareSum += Math.pow(number, 2); // Same as number*number; } // Find mean double mean = sum / count; // Find standard deviation double deviation = Math.sqrt((squareSum - sum * sum / count) / (count - 1)); // Display result System.out.println("The standard deviation is " + deviation); }} But, before you submit your java file to Gradescope, please insert these three lines givenbelow at the beginning of your code.package homework;import brandon.math. Random;import brandon.math.Math;An illustration in the next page is done for your help.package homework;import brandon.math. Random;import brandon.math.Math;public class HW4 {public static void main(String[] args) {// Find meandouble meanValue = mean (99, 1000);// Find standard deviationdouble deviationValue = deviation (99, 1000);// Display resultSystem.out.println("The mean is " + meanValue);System.out.println("The standard deviation isdeviationValue);+}public static double mean (int boundary, int n) {//Complete on your own}public static double deviation (int boundary, int n) {//Complete on your own} 1. DownloadComputeMeanDeviation.java from M5 Methods module in folio.2. Modify the program by adding the following two methods:public static double mean (int boundary, int n)public static double deviation (int boundary, int n)In the mean method, generate n random integers = [0, boundary], compute andreturn the result of the mean.In the deviation method, generate n random integers = [0, boundary], computeand return the result of the standard deviation.The formulas to compute the mean and the standard deviation are:nΣx,i=1mean =(x)i=1Σx².deviationi=1n=n-13. Rewrite the main method so that it invokes the mean and deviation methods anddisplays the results of the mean and the standard deviation. A sample mainmethod is as follows. Please type this main method in your own source code.public static void main(String[] args) {// Find meandouble meanValue = mean (99, 1000);// Find standard deviationdouble deviationValue = deviation (99, 1000);// Display resultSystem.out.println("The mean is + meanValue);System.out.println("The standard deviation is +deviationValue);"1}|n

Since both the method have a separate random generator, the numbers generated on both the methods…

Answered: 1. Download ComputeMeanDeviation.java…

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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I need help with an assignment. I am confused as to if the manual is asking to implement and modify the java code provided to us or create one following the code written in the java file provided. So please help me figure that out and provide with a sultion. Rest of the instruction manual is attatched in the images. I am pasting the java code provided to me below.

java code provided to me as mentioned in step 1 of manual.

package homework;

// ComputeMeanDeviation.java: Demonstrate using the math methods
public class ComputeMeanDeviation {
/** Main method */
public static void main(String[] args) {
int count = 10; // Total numbers
int number = 0; // Store a random number
double sum = 0; // Store the sum of the numbers
double squareSum = 0; // Store the sum of the squares

// Create numbers, find its sum, and its square sum
for (int i = 0; i < count; i++) {
// Generate a new random number
number = (int)(Math.random() * 1000);

// Add the number to sum
sum += number;

// Add the square of the number to squareSum
squareSum += Math.pow(number, 2); // Same as number*number;
}

// Find mean
double mean = sum / count;

// Find standard deviation
double deviation =
Math.sqrt((squareSum - sum * sum / count) / (count - 1));

// Display result
System.out.println("The standard deviation is " + deviation);

}
}

But, before you submit your java file to Gradescope, please insert these three lines given
below at the beginning of your code.
package homework;
import brandon.math. Random;
import brandon.math.Math;
An illustration in the next page is done for your help.
package homework;
import brandon.math. Random;
import brandon.math.Math;
public class HW4 {
public static void main(String[] args) {
// Find mean
double meanValue = mean (99, 1000);
// Find standard deviation
double deviationValue = deviation (99, 1000);
// Display result
System.out.println("The mean is " + meanValue);
System.out.println("The standard deviation is
deviationValue);
+
}
public static double mean (int boundary, int n) {
//Complete on your own
}
public static double deviation (int boundary, int n) {
//Complete on your own
}

1. Download
ComputeMeanDeviation.java from M5 Methods module in folio.
2. Modify the program by adding the following two methods:
public static double mean (int boundary, int n)
public static double deviation (int boundary, int n)
In the mean method, generate n random integers = [0, boundary], compute and
return the result of the mean.
In the deviation method, generate n random integers = [0, boundary], compute
and return the result of the standard deviation.
The formulas to compute the mean and the standard deviation are:
n
Σx,
i=1
mean =
(x)
i=1
Σx².
deviation
i=1
n
=
n-1
3. Rewrite the main method so that it invokes the mean and deviation methods and
displays the results of the mean and the standard deviation. A sample main
method is as follows. Please type this main method in your own source code.
public static void main(String[] args) {
// Find mean
double meanValue = mean (99, 1000);
// Find standard deviation
double deviationValue = deviation (99, 1000);
// Display result
System.out.println("The mean is + meanValue);
System.out.println("The standard deviation is +
deviationValue);
"1
}|
n

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