A moving average transforms a fixed series into exact window averages. This lesson shows the arithmetic window directly, then checks that the plotted values and table values match the recompute.
highlighted = computed this step
Window average
MA(3) averages the last 3 observed values. Motivation: a window average replaces one noisy observation with a local arithmetic summary.
MA3=window sum/3
One window
For period 4, the window values are 4, 3, and 6; their sum is 13. Why: the fraction comes from this exact sum divided by the window length, with no fitted parameter hidden behind the table.
(4+3+6)/3=13/3
All MA values
The MA(3) outputs are 3, 13/3, 14/3, and 19/3. Interpretation: every displayed bar is a recomputed window, so the plot is a visual form of the same exact table.
MA values=3,13/3,14/3,19/3
Diagram note
Honesty note: These values are exact formula outputs on the pinned integer series; they do not validate what happens later. Pixel positions are rounded for layout; every number shown is exact.
moving-average outputs are exact window arithmetic