computer sciiii

Answer 1

li=[ [95,92,86,87],[66,54],[89,72,100],[33,0,0,70 ] ]

a=[]

for i in li:

a.append(sum(i)//4)

total_average=sum(a)//4

for i in a:

print("Students average:",i,"total_average:",total_average)

Answer 2

/*****************************************************

Justin: here are the source codes for the FOUR (4)

problems that you have posted....

Sorry, no Python... just java

***************************************************/

import java.io.*;

import java.lang.Math.*;

class Justin

{

private int N;

private int X;

private int Y;

private int Z;

public double CoinProbability()

{

N = PromptForInteger("Please input the # N :>",1,32767);

double prob = 1.0f/ Math.pow(2,N);

System.out.println(" Probability of " + N + " in a row = " + prob);

return(prob);

}

public int GetN() { return(N); }

public int GetX() { return(X); }

public int GetY() { return(Y); }

public int GetZ() { return(Z); }

public void CompareSum()

{

X = PromptForInteger(" Please input the 1st # :>",-15000,15000);

Y = PromptForInteger(" Please input the 2nd # :>",-15000,15000);

Z = PromptForInteger(" Please input the 3rd # :>",-32767,32767);

if ((X+Y)<Z)

{

System.out.println("The total of " + X + "+" + Y + " is LESS Than " + Z);

}

else if ((X+Y)>Z)

{

System.out.println("The total of " + X + "+" + Y + " is GREATER Than " + Z);

}

else

{

System.out.println("The total of " + X + "+" + Y + " is EQUAL to " + Z);

}

}

public int PromptForInteger(String promptMsg, int iMin, int iMax)

{

String inbuff;

Console console;

int iReturn=-1;

do

{

console = System.console();

System.out.print(promptMsg);

inbuff = console.readLine();

iReturn = Integer.parseInt(inbuff);

} while ((iReturn<iMin) || (iReturn>iMax));

return(iReturn);

} //PromptForInteger

public void GradeAverage( int [][] A)

{

double classTotal = 0;

double classAvg = 0;

int N = A.length;

if (N==0) { return;}

int iLoop, jLoop;

for (iLoop=0; iLoop<N; iLoop++)

{

double rowSum = 0;

int rowCount = A[iLoop].length;

for (jLoop=0; jLoop<rowCount; jLoop++)

{

rowSum += A[iLoop][jLoop];

System.out.print(A[iLoop][jLoop] + " ");

}

double rowAvg = rowSum / rowCount;

System.out.println(" row Avg = " + rowAvg);

classTotal += rowAvg;

}

classAvg = classTotal/N;

System.out.println(" Class average = " + classAvg);

}

private int LinearSearch( int [] A, int iTarget)

{

int iReturn=-1;

for (int iLoop=0; iLoop<A.length; iLoop++)

{

if (iTarget==A[iLoop])

{

iReturn = iLoop;

break;

}

}

return(iReturn);

}

private int Max(int [] A)

{

int iMax = -32767;

for (int iLoop=0; iLoop<A.length; iLoop++)

{

if (A[iLoop]>iMax)

{

iMax = A[iLoop];

}

}

return(iMax);

}

public void ShowMultiples()

{

int [] A = {5,13,6,21,17,51,10,33};

int t = PromptForInteger("Please enter the # :>",1,10000);

int N=1;

int n=-32767;

while (n<=Max(A))

{

n=N*t;

if (LinearSearch(A,n)>=0)

{

System.out.println(n);

}

N++;

}

}

public static void main(String args[])

{

Justin x = new Justin();

x.CoinProbability();

x.CompareSum();

int A[][] = {{95,92,86,87},{65,54},{89,72,100},{33,0,0,70}};

x.GradeAverage(A);

x.ShowMultiples();

} //main

} //class