Answer
$P(was~in~a~structure)=0.32$
$P(was~not~in~a~structure)=0.68$
Work Step by Step
$32$% $=0.32$
$P(was~in~a~structure)=0.32$
The event "was not in a structure" is the complement of "was in a structure".
Using the Complement Rule (see page 275):
$P(was~not~in~a~structure)=1-P(was~in~a~structure)=1-0.32=0.68$