Answer
false.
A corrected statement is:
"When filling in cardinalities for regions in a two-set Venn diagram, the innermost region, the intersection of the two sets, should be the first region to be filled in."
Work Step by Step
The statement is false.
The innermost region is the first region that you fill in.
Thus, the corrected statement is:
"When filling in cardinalities for regions in a two-set Venn diagram, the innermost region, the intersection of the two sets, should be the first region to be filled in."