xxxxxxxxxx
let myNumbers = [3, 20, 45, 1, -20];
let a = average(myNumbers);
print("The average is "+a);
function average(arr) {
let sum = 0;
for(let i=0; i<myNumbers.length; i++) {
sum = sum + myNumbers[i];
}
let avg = sum/myNumbers.length;
return avg;
}