Question 1129998
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For part A, only focus on the "residential" row. We have 130 robberies, 40 murders, and 30 assaults. This totals to 130+40+30 = 200 residential crimes overall. 


Of these 200 residential crimes, 130 are robberies. 
So this leads to 130/200 = <font color=red>13/20</font> 
Therefore, you have the correct answer. Nice work.


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In part B, we will only focus on the "assault" column because of the phrasing "given that it was an assault". There are 30 residential assaults and 20 commercial assaults leading to 30+20 = 50 total. Divide the residential assault count over the total assault count: 30/50 = 3/5


So the answer to part B is the fraction <font color=red>3/5</font>
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