Answer
$P(offender~is~white)=\frac{3318}{7285}\approx0.4555$
Work Step by Step
The sample space: $3026+573+53+57+208+3034+12+49+54+28+97+7+30+27+4+26=7285$ cases. That is:
$N(S)=7285$
Now, $N(offender~is~white)=3026+208+54+30=3318$
$P(offender~is~white)=\frac{N(offender~is~white)}{N(S)}=\frac{3318}{7285}\approx0.4555$
