I got it! I finally got some help that really explained what 2-day moving average means. This is a forecasting problem.
Numbers - 92, 91, 94, 95, 96, 88,90
2-Day Averages - 91.5, 92.5, 94.5, 95.5, 92
Absolute Error - 2.5, 2.5, 1.5, 7.5, 2
MAD = 3.2
I understand MAD, but I cannot figure out this question. Here's the information.
Daily high temperatures in St. Louis for the last week were as follows: 92, 91, 94, 95, 96, 88,90.
The mean absolute deviation based on a 2-day moving average = 3.20
How in the world is it 3.20? I've tried...