The means and mean absolute deviations of the amount of rain that fell each day in a local city, last week and this week, are
shown below.
Means and Mean Absolute Deviations of
Rainfall Last Week and This Week
Last Week
19.7 cm
This Week
19.3 cm
Mean
Mean Absolute Deviation
4.6 cm
5.2 cm
The difference in the mean rainfall is approximately what percent of the mean absolute deviation of the this week's rainfall?
O 8%
O 23%
O 27%
O 67%