How do I calculate the sum and average of elements in an array?

Calculating Sum and Average of Array Elements

To compute the sum and average of an array's elements, follow these steps:

Summation:

1. Initialize a variable to store the sum (sum = 0).
2. Iterate through the array, adding each element to the sum variable.
3. The final value of sum will be the sum of all array elements.

Example:

const elmt = [0, 1, 2, 3, 4, 7, 8, 9, 10, 11];
let sum = 0;

for (i = 0; i < elmt.length; i++) {
  sum += elmt[i];
}

console.log(`The sum is: ${sum}`);

Averaging:

1. Calculate the sum of elements as described above.
2. Divide the sum by the total number of elements (avg = sum / array_length) to obtain the average.

Example:

const avg = sum / elmt.length;
console.log(`The average is: ${avg}`);

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