A batch consists of 12 defective coils and 88 good ones. Find the probability of getting two good coils when two coils are rando
mly selected if the first selection is replaced before the second is made. 0.7744 0.7733 0.0144 0.176
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
<u>Answer:</u>
The probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made is 0.7744  
<u>Solution:</u>
Total number of coils = number of good coils + defective coils = 88 + 12 = 100
p(getting two good coils for two selection) = p( getting 2 good coils for first selection )  p(getting 2 good coils for second selection)
 p(getting 2 good coils for second selection)
p(first selection) = p(second selection) = 
Hence, p(getting 2 good coil for two selection) = 
 
                                
             
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