Question

Write a JavaScript program that computes the average of a collection of numbers and then outputs the total number of values that are greater than the average.

An A grade is any score that is at least 20% greater than the average. The B grade is any score that is not an A, but is at least 10% greater than the average. An F grade is any score that is at least 20% less than the average. The D grade is any score that is not an F, but is at least 10% less than the average. Any scores that are within 10% of the average (either less than or greater than) are C's.

Answer 1

var arry = [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]

var sum = 0;

for( var i = 0; i < arry.length; i++ ){

sum = sum + arry[i]; //computing the sum of numbers

}

//computing the average

var avg = sum/arry.length;

var count = 0;

for( var i = 0; i < arry.length; i++){

if( arry[i] > avg)

count = count + 1; //number of scroes greater than average

}

document.write( "The number of values greater than average are " + count);

document.write("<br>")

//computing the grades for the respective scores

for( var i = 0; i < arry.length; i++){

document.write( "Score "+ arry[i] +" has ");

if( arry[i] > (avg * 1.2) ){

document.write("Grade A");

} else if(arry[i] > (avg * 1.1)){

document.write("Grade B");

} else if(arry[i] <= (avg * 0.8)){

document.write("Grade F");

} else if(arry[i] <= (avg * 0.9)){

document.write("Grade D");

}else{

document.write("Grade C");

}

document.write("<br>")

}

Screenshot of the program:

Output of the program:

Hoping that the solution helps !!