A bank has two branches, one on West Avenue and the other on Water Field Road. The table gives the number of new accounts opened at each branch in the past 10 days. West Avenue Branch Water Field Road Branch
7 18
9 20
6 12
11 15
7 7
9 6
5 11
12 13
10 19
4 11
The mean absolute deviation of the data for the West Avenue Branch is
. The mean absolute deviation of the data for the Water Field Road Branch is
. Based on the mean absolute deviations for the two data sets, we can conclude that the spread of the data for the West Avenue Branch is
than the spread of the data for the Water Field Road Branch.