calculate Mean absolute deviation for

3 months moving average

3 months weightedmoving

exponential smoothing with constant 0,2 and the other with 0.5

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Total Vehicle Sales, observation Millions of Units, b.) 3 month c) d.) a.) 3 month weightedmovi exponential exponential moving ng average (3- smoothing smoothing 3MONTHS with constant with date Monthly average 2-1) MAD 1 01/12/2022 13.88 14 14 2 01/01/2023 16.46 13.98 13.94 3 01/02/2023 15.44 14.47 15.20 4 01/03/2023 15.40 15.26 15.52 14.66 15.32 5 01/04/2023 16.59 15.77 15.59 14.81 15.36 6 01/05/2023 15.63 15.81 16.00 15.17 15.97 7 01/06/2023 16.19 15.87 15.91 15.26 15.80 8 01/07/2023 16.25 16.13 16.07 15.45 15.99 9 01/08/2023 15.81 16.02 16.13 15.61 16.12 10 01/09/2023 16.18 16.08 16.02 15.65 15.97 11 01/10/2023 15.91 16.08 16.07 15.76 16.08 12 01/11/2023 15.86 15.97 15.99 15.79 15.99 01/12/2023 15.99 15.93 15.80 15.93 Total Vehicle Sales, observation Millions of Units, b.) 3 month c) d.) a.) 3 month weightedmovi exponential exponential moving ng average (3- smoothing smoothing 3MONTHS with constant with date Monthly average 2-1) MAD 1 01/12/2022 13.88 14 14 2 01/01/2023 16.46 13.98 13.94 3 01/02/2023 15.44 14.47 15.20 4 01/03/2023 15.40 15.26 15.52 14.66 15.32 5 01/04/2023 16.59 15.77 15.59 14.81 15.36 6 01/05/2023 15.63 15.81 16.00 15.17 15.97 7 01/06/2023 16.19 15.87 15.91 15.26 15.80 8 01/07/2023 16.25 16.13 16.07 15.45 15.99 9 01/08/2023 15.81 16.02 16.13 15.61 16.12 10 01/09/2023 16.18 16.08 16.02 15.65 15.97 11 01/10/2023 15.91 16.08 16.07 15.76 16.08 12 01/11/2023 15.86 15.97 15.99 15.79 15.99 01/12/2023 15.99 15.93 15.80 15.93