Answer
$P(both~alcohol~related)=0.08474$
Work Step by Step
$P(alcohol~related)=0.2911$
The events "traffic fatalitie 1 was alcohol related" and "traffic fatalitie 2 was alcohol related" are independent.
Now, using the Multiplication Rule (see page 282):
$P(both~alcohol~related)=P(traffic~fatalitie~1~was~alcohol~related)\times P(traffic~fatalitie~2~was~alcohol~related)=0.2911\times0.2911=0.08474$
