Wat is the correct term for 'historic average'? I've got the following array of numbers: `{2, 4, 8, 1, 3}` I've got a function that will shows the 'historic average' for every number: `{2, 3, 4.667, 3.75, 3.6}` I'm not a mathematician, but I would like to know how this function is called. Anyone?

This is called a cumulative moving average.