Answer
Age: At least 18.
Race: Black.
Sex: Male.
Work Step by Step
From (a), (b), (c): $N(S)=7285$
- Age of offender:
$N(Less~than~18)=124+290+4=418$
$N(At~least~18)=619+5628+80=6327$
$N(Unknown)=39+480+21=540$
So: $P(At~least~18)=\frac{6327}{7285}\gt P(Unknown)=\frac{540}{7285}\gt P(Less~than~18)=\frac{418}{7285}$
- Race of offender:
$N(White)=3026+208+54+30=3318$
$N(Black)=573+3034+28+27=3662$
$N(Other)=53+12+97+4=166$
$N(Unknown)=57+49+7+26=139$
So: $P(Black)=\frac{3662}{7285}\gt P(White)=\frac{3318}{7285} \gt P(Other)=\frac{166}{7285}\gt P(Unknown)=\frac{139}{7285}$
- Sex of offender:
$N(Male)=4710+1735+50=6495$
$N(Female)=490+150+11=651$
$N(Unknown)=89+24+26=139$
So: $P(Male)=\frac{6495}{7285}\gt P(Female)=\frac{651}{7285}\gt P(Unknown)=\frac{139}{7285}$
