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neonofarm [45]
3 years ago
8

One of your start-ups uses error-correcting codes, which can recover the original message as long as at least 1000 packets are r

eceived (not erased). Each packet gets erased independently with probability 0.8. How many packets should you send such that you can recover the message with probability at least 99%
Computers and Technology
1 answer:
Marina CMI [18]3 years ago
5 0

Answer:

Number of packets ≈ 5339

Explanation:

let

X = no of packets that is not erased.

P ( each packet getting erased ) = 0.8

P ( each packet not getting erased ) = 0.2

P ( X ≥ 1000 ) = 0.99

E(x) = n * 0.2

var ( x ) = n * 0.2 * 0.8

∴ Z = X - ( n * 0.2 ) / \sqrt{n*0.2*0.8}   ~ N ( 0.1 )

attached below is the remaining part of the solution

note : For the value of <em>n</em> take the positive number

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Program 7 - Circle You write ALL the code, then run it - Produce the correct output. Turn in code and screen print of successful
fgiga [73]

Answer:

Here is the Circle class:

public class Circle {   // class definition

private int radius;    // private data member of type int of class Circle named radius that stores the value of radius

public Circle(int r) {   // parameterized constructor of class Circle that takes radius as argument

 radius = r;  }    // sets value of radius as r

public int getRadius() {   // accessor method to get the value of radius

 return radius;  }   // returns the current value of radius

public int Diameter() {   // method to compute diameter of a circle

 return radius * 2;  }   // multiply radius value by 2 to compute diameter of Circle

 

public double Area() {   // method to compute area of a circle

 return Math.PI  * Math.pow(radius, 2);   }   //the formula of area is

π x radius² where value of π is get using Math.PI

 

 public double Circumference() {   // // method to compute circumference of a circle

 return 2* Math.PI * radius;   }   }  //the formula of circumference is

2 x π x radius where value of π is get using Math.PI

Explanation:

Here is the Main class:

import java.util.Scanner;  //to accept input from user

public class Main {  //definition of Main class

public static void main(String[] args) {  //start of main method

   

    Scanner scanner = new Scanner (System.in);  //creates Scanner object to take input from user

    System.out.println("Enter radius: ");  //prompts user to enter radius

    int r = scanner.nextInt();  //reads the value of radius from user

 Circle c = new Circle(r);  // calls Constructor of Circle passing r as argument to it using the object c of class Circle

 

    if(c.getRadius()<=0){  //calls getRadius method to get current value of radius using objec and checks if this value (input value of r ) is less than or equal to 0

        System.out.println("Error!");   }  //when above if condition evaluates to true then print this Error! message

    else {  //if the value of radius is greater than 0

System.out.println("the radius of this Circle is: " +c.getRadius());  //calls getRadius method to return current value of r (input value by user)

System.out.println("the diameter of this Circle  is: " + c.Diameter());  //calls Diameter method to compute the diameter of Circle and display the result on output screen

System.out.printf("the circumference of this Circle  is: %.2f", c.Circumference());  //calls Circumference method to compute the Circumference of Circle and display the result on output screen

System.out.println();  //prints a line

System.out.printf("the Area of this Circle  is: %.2f", c.Area()); } }  }

//calls Area method to compute the Area of Circle and display the result on output screen

The program and its output is attached.

7 0
3 years ago
A medical assistant at a local hospital is exploring the Start Menu of his/her computer and various Windows programs/application
Ratling [72]
<span>Five questions that people are most likely to ask about the application are as follows:1. What is the use and function of this application?. 2. Who is this application for? 3. How much does this application cost?. 4. Where can the application been used? and 5. Why should I use this application? </span>
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All of the following are ways to improve the mobile experience for a website visitor EXCEPT:
Jobisdone [24]

Answer:

Adding more links to the page.

Explanation:

User experience design, UED, is a concept or a process of software development application life cycle that graphically presents a clients project to reflect the needs, want and interactivity of the users.

There are certain principles that governs the design of user interactive web and mobile interfaces. A user interface has to be simple, easy to interact with, give a good feel, signing into email, phone, laptop, mobile app etc, should also be made easy.

Covering the screen with link, makes it difficult to navigate without triggering a link.

3 0
3 years ago
Which of the following are downlink transport channels?
Hunter-Best [27]
I think it’s a or b
4 0
2 years ago
When Tim Berners-Lee developed the first specifications, protocols, and tools for the World Wide Web in 1993, his employers at C
Svetllana [295]

Answer:

c.

Explanation:

People trust open-source software - if they can see how it works and understand it, they can help improve it and build applications using it. If these protocols were not publicly available - then nobody would have implemented services using them - so nobody would be adopting it.

8 0
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