medal!!!!!!

What is the relative frequency of the revenue earned by B&B Motors from sales of mini trucks compared to the total sales revenue earned by all four companies?
Sales ($ million)
Company Convertibles SUVs Sedans Mini Trucks Marginal Totals
Allison 45 28 19 36 128
B&B Motors 65 22 15 9 111
Pluto Cars 18 25 27 10 80
Panther Motors 40 26 34 12 112
Marginal Totals 168 101 95 67 431

Question

medal!!!!!!

What is the relative frequency of the revenue earned by B&B Motors from sales of mini trucks compared to the total sales revenue earned by all four companies? 
Sales ($ million)	
Company	Convertibles	SUVs 	Sedans	Mini Trucks	Marginal Totals
Allison	    45	                 28              19	                36	                         128
B&B Motors   65	          22             15           	9	                         111
Pluto Cars	   18	                    25	           27               	10	                           80
Panther Motors	40	             26	   34                  12	                         112
Marginal Totals	168	          101         95                	67                         	431