12 rinclude 13 rinclude 16 include 17 18 using namespace std e z1 21 // function

Question

12 rinclude 13 rinclude 16 include 17 18 using namespace std e z1 21 // function declarations: 22 11 23 int Inputoata(string filenane, int exan1[), int exan2[1, int exam3[1 24 void Sort (int Atl, int N): 2s double ComputeAvg(int A[1, int N); 26 double ComputeHedian(int All, int N): 27 double StandardDev(int Al], int N); 28 void Histogran(int Atl, int N, int histogramll) 29 3e 32 1 main: 33 11 34 int main() 35 36 int exam[1000]; 37 int exam2[18e01; 8int exa3[1ee01; 9 intN 4e string filename 41 42 43 input filenane from keyboard: 4a11 45 cin > filenane; 46 47 I 48 Input data and perform analysis: 49 11 se coutExan Analysisendl; 51 cout -Filename : -

Explanation / Answer

int main()

{

int grade1[1000];

int grade2[1000];

int grade3[1000];

int N;

string filename;

cin>>filename;

cout<<" Grade analysis"<<endl;

cout<<"Filename: "<<filename<<endl;

N=InputData(filename,grade1,grade2,grade3);

cout<<" Number of students: "<<N<<endl;

cout<<" Average of grade1: "<< ComputeAvg(grade1,N)<<endl;

cout<<" Average of grade2: "<< ComputeAvg(grade2,N)<<endl;

cout<<" Average of grade3: "<< ComputeAvg(grade3,N)<<endl;

Sort(grade1,N);

Sort(grade2,N);

Sort(grade3,N);

cout<<"Median of exam1: "<<ComputeMedian(grade1,N)<<endl;

cout<<"Median of exam2: <ComputeMedian(grade2, N)<<endl;

cout<<"Median of exam3 "<<ComputeMedian(grade3,N)<<endl;

cout<<"Standard Deviation of grade1: "<<StandardDev(grade1,N)<<endl;

cout<<"Standard Deviation of grade2"<<StandardDev(grade2,N)<<endl;

cout<<"Standard Deviation of grade3"<<standardDev(grade3,N)<<endl;

cout<<"Histograms A B C D E"<<endl;

Histogram(grade1,N,histogram);

Histogram(grade2,N,histogram

Histogram(grade3,N,histogram);

cout<<"** done **;

return 0;

}

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