In the table below x denotes the X-Tract Company’s projected annual profit (in $1,000).  The table also shows the probability of earning that profit.  The negative value indicates a loss.   x f(x)   x = profit   -100 0.01   f(x) = probability -200 0.04       0         100 0.26       200 0.54       300 0.05       400 0.02         12 If we add $45 to each value in the profit/loss column above, the new variance of profit will be,   a 12,169               b 11,741               c 11,696               d 11,467

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In the table below x denotes the X-Tract Company’s projected annual profit (in $1,000).  The table also shows the probability of earning that profit.  The negative value indicates a loss.

 

x f(x)   x = profit  
-100 0.01   f(x) = probability
-200 0.04      
0        
100 0.26      
200 0.54      
300 0.05      
400 0.02      

 

12 If we add $45 to each value in the profit/loss column above, the new variance of profit will be,
 
a 12,169              
b 11,741              
c 11,696              
d 11,467              
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