Daily humidity in the city of Houston for the last week have been: 93, 94, 93, 95, 92, 86, 98 (yesterday).Calculate the MAD based on a two-day moving average, covering all days in which you can have a forecast and an actual humidity level.
A)3.9
B)4.1
C)4.3
D)4.5

Question

Quizplus · Accepted Answer

The two-day moving averages are: (93+94)/2 = 93.5, (94+93)/2 = 93.5, (93+95)/2 = 94, (95+92)/2 = 93.5, (92+86)/2 = 89, (86+98)/2 = 92. The absolute deviations are: |93-93.5|, |94-93.5|, |93-94|, |95-93.5|, |92-89|, |86-92|, |98-92|. The MAD is the average of these absolute deviations, which is 4.1.

Daily Humidity in the City of Houston for the Last