We can divide or partition a rectangle into thirds in two different ways by dividing the rectangle either horizontally or vertically such that each partition that is created on dividing it have equal area or equal share of the original rectangle and hence the partitions are similar.
The figure that denotes this partition is attached to the answer.
In finding this value you average lower and upper bound
(0.6+0.82)/2 = 0.71
=0.71 estimated
margin of error = distance from estimate point lower/ upper bound
This interval will be twice margin error
(0.82-0.6)/2 = 0.11
How far is 0.82 from 0.71 ??
=0.11=11%
