// METHODS OF ARRAYS
/*
  push(elem_list): Adds one or more elements to the end of the array, 
                   and returns the new length of the array. 
*/
let getSum = function(list)
{
    let sum=0
    for(let i in list)
    {
        let n = list[i]
        sum = sum + n
    }
    return sum;
}


let getAverage = function(list)
{
    let sum = getSum(list);
    let ave = sum/list.length
    return ave
}

let numbers = [2, 6, 4, 7, 3, 6]
console.log("Array: " +numbers)
let sum = getSum(numbers)
let average = getAverage(numbers)

console.log("Sum = " +sum  )
console.log("Average = " +average)