Write a function called sumAndAverage. It should take in an array of numbers and return the sum and average of the array in that order. For example:

[s a] = sumAndAverage([3 2 3 2]) %should return 10 and 2.5

[s a] = sumAndAverage([5 -5 2 8 0]) %should return 10 and 2

[s a] = sumAndAverage([]) %should return 0 and 0

You can use Built-in functions.

Create a vector, then invoke your function like this:

>>Arr=[3 2 3 2]

>>[s a]=sumAndAverage(Arr)

Note: the function has only one parameter. It is a vector