<PRE><B>Question 1166428</B>
Age	                Speed	 Careless 	Drinking and Driving	Total
Below 25	        278	       77	                       285	                       640
25 and above	296	      204	                       178	                       678
Total	        574	      281	                       463	                       1318

a. 77/1318 or 0.0584. The others I will leave in fractional form and they can be converted to decimal.
b. the two add to 1037, and there is no double counting. The fraction is 1037/1318
c. Drinking and Driving is 463, driver under 25 is 640. Both (double counted) is 285 and is subtracted
so the fraction is 818/1318
d. given speeding (574 denominator) at least 25 is 296, so fraction is 296/574.
e. careless driving is 281/1318 or 0.2132. Both would be 0.2132^2 or 0.0455
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