Which Windows 7 feature allows a user to open multiple programs at the same time?

Variance for accumulator. Validate that the following code, which adds the

Art [367]

Using the knowledge of computational language in JAVA it is possible to write a code that Validate that the following code, which adds the methods var() and stddev() to Accumulator, computes both the mean and variance of the numbers presented as arguments to addDataValue()

<h3>Writting the code:</h3>

import java.util.*;

public class Accumulator {

private static double m;

private static double v;

private static double st;

private static double s[]=new double[5];

private static int N;

private static int count =0;

public static void main(String[] args) {

// TODO Auto-generated method stub

Random r = new Random();

System.out.println("hello world");

for(int i=0;i<5;i++) {

double randomvalue = r.nextDouble();

addDataValue(randomvalue);

}

for(int i=0;i<s.length;i++) {

System.out.println("dataValue:"+s[i]);

}

mean();

System.out.println("mean:"+m);

var();

System.out.println("variance:"+v);

stddev();

System.out.println("standard deviation:"+st);

}

public static void addDataValue(double value) { // addes data values to array

s[count]=value;

count++;

}

public static double mean() { // returns mean

double sum=0.0;

for(int i=0;i<s.length;i++) {

sum+=s[i];

}

m = sum/s.length;

return m;

}

public static double var() { //returns variance

double mm = mean();

double t = 0;

for(int i=0;i<s.length;i++) {

t+= (s[i]-mm)*(s[i]-mm);

}

v= t/(s.length-1);

return v;

}

public static double stddev() { // returnsn the stardard deviation

st= Math.sqrt(var());

return st;

}

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3 0

1 year ago

The java class library interface queue method to put an entey on the back of a queue that returns false if the method falls is

Mars2501 [29]

Answer:

(A) Add.

Explanation:

The add method of queue inserts an element at the tail of the queue.

syntax:- queue.add(element);

It's return type is boolean it returns true if the insertion is successful and returns false if the insertion is unsuccessful and it returns an IllegalSpace Exception if there is no space left to insert an element in the queue.

5 0

4 years ago

To advance rightward from one cell to the next in a table, press the ____ key. answer

PSYCHO15rus [73]

To advance rightward from one cell to the next in a table, press the tab key.

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3 years ago

When an architect designs a building, what visual design elements could be used to help capture a viewer’s attention? A) The use

Salsk061 [2.6K]

The correct answer is A

6 0

3 years ago