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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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Write a program that accepts any number of homework scores ranging in value from 0 through
Dimas [21]

Answer:

This program is written in Java programming language.

It uses an array to store scores of each test.

And it also validates user input to allow only integers 0 to 10,

Because the program says the average should be calculated by excluding the highest and lowest scores, the average is calculated as follows;

Average = (Sum of all scores - highest - lowest)/(Total number of tests - 2).

The program is as follows (Take note of the comments; they serve as explanation)

import java.util.*;

public class CalcAvg

{

public static void main(String [] args)

{

 Scanner inputt = new Scanner(System.in);

 // Declare number of test as integer

 int numTest;

 numTest = 0;

 boolean  check;

  do

  {

   try

   {

     Scanner input = new Scanner(System.in);

    System.out.print("Enter number of test (1 - 10): ");

    numTest = input.nextInt();

    check = false;

    if(numTest>10 || numTest<0)

     check = true;

   }

   catch(Exception e)

    {

     check = true;

   }

  }

  while(check);

  int [] tests = new int[numTest];

//Accept Input

for(int i =0;i<numTest;i++)

{

System.out.print("Enter Test Score "+(i+1)+": ");

tests[i] = inputt.nextInt();

}

           //Determine highest

           int max = tests[0];

           for (int i = 1; i < numTest; i++)

           {

               if (tests[i] > max)

               {

                   max = tests[i];

               }

           }

           //Determine Lowest

           int least = tests[0];

           for (int i = 1; i < numTest; i++)

           {

               if (tests[i] < least)

               {

                   least = tests[i];

               }

           }

           int sum = 0;

           //Calculate total

           for(int i =0; i< numTest;i++)

           {

               sum += tests[i];

           }

           //Subtract highest and least values

           sum = sum - least - max;

           //Calculate average

           double average = sum / (numTest - 2);

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           System.out.println("Average = "+average);

           //Print Highest

           System.out.println("Highest = "+max);

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           System.out.print("Lowest = "+least);

}

}

//End of Program

6 0
3 years ago
manufacturers are making an effort to build energy-efficient computers and use recyclable cases and packaging true or false
Fittoniya [83]
True would be ur answer

Hope I helped:P
7 0
4 years ago
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disa [49]
The predecessor of the internet is ARPANET better known as Advanced Research Project Agency
4 0
3 years ago
A ___ is a node (or a device) that connects two different networks together and allows them to communicate.
stellarik [79]

Answer:

The answer is Hub

Explanation:

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7 0
3 years ago
According to Android’s suggested user interface standards, repeatedly pressing the app icon on an app’s action bar will eventual
marusya05 [52]

Answer:

False

Explanation:

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8 0
3 years ago
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