The stem-and-leaf plot shows the ages of two groups of volunteers. Ages of Two Groups of Volunteers
Group A Group B
9,6,6,4 19
8,7,5, 3,120,1,5,6,8
KEY
1/310, 2, 3,6
41119 means 14 and 19
Express the difference in mean values for the ages of the two groups with reference to the mean absolute deviation of the
Help ASAP PLEASE groups.
B I y IX, X