The ages of four groups of 10 workers at a factory are shown, which group has the largest mean absolute deviation?
A) group 1
B) group 2
C) group 3
D) group 4

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase