Answer:
a.The classification error rate for records that are truly fraudulent: By increasing the cutoff value, the non-fraudulent records will go down and this increases the error rate.
Also, if the cutoff value is down, the fraudulent records will increase and this lowers the error rate
.b.The classification error rate for records that are truly non-fraudulent: By moving up the cutoff value, the fraudulent records will go down and this decreases the error rate.
Also, if the cutoff value is down, the non-fraudulent records will go down and this increases the error rate.
 
        
             
        
        
        
B is the answer I think I spend to much
        
             
        
        
        
Answer:
2:1
Step-by-step explanation:
24 circles:12 hearts
/12.           /12
2 circles : 1 heart
 
        
                    
             
        
        
        
double every 6 months  
in 6 months there would be 250*2 = 500 crickets
 in 1 year there would be 500*2 = 1000 crickets
in 1.5 years there would be 1000 *2 = 2000 crickets
 in 2 years there would be 2000 *2 = 4000 crickets