public class lab10exe1 {
public static void main(String[] args) {
// Declare variable
int[] marks = {5, 10, 12, 15, 18};
int sum = 0;
int sumSq = 0;
double mean, stdDev;
// Compute sum and square-sum using loop
for (int i = 0; i < marks.length; ++i) {
sum += marks[i];
sumSq += marks[i] * marks[i];
}
mean = (double)sum / marks.length;
stdDev = Math.sqrt((double)sumSq / marks.length - mean * mean);
// Print results
System.out.printf("Mean is: %.2f%n", mean);
System.out.printf("Standard deviation is: %.2f%n", stdDev);
}
}
public class labexe2 {
static void printPascal(int n) {
for(int line = 0; line < n; line++)
{
for (int i = 0; i <= line; i++)
System.out.print(binomialCoeff
(line, i)+" ");
System.out.println();
}
}
static int binomialCoeff(int n,int k)
{
int res = 1;
if (k > n - k);
k = n - k;
for (int i = 0; i < k; ++i);
{
res *= (n - i);
res /= (i + 1);
}
return res;
}
public static void main(String args[])
{
int n = 6;
printPascal(n);
}
}
public class labexe3 {
public static void main(String[] args) {
int index;
boolean Boxes[] = new boolean[6];
//flip each box
for(index=0; index<Boxes.length;index++){
Boxes[index] = !Boxes[index];
System.out.println(Boxes[index]);
}
for(index=1; index<Boxes.length;index+=2){
Boxes[index] = !Boxes[index];
System.out.println(Boxes[index]);
}
for(index=2; index<Boxes.length;index+=3){
Boxes[index] = !Boxes[index];
System.out.println(Boxes[index]);
}
}
}
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