The probability that a given computer chip will fail is 002

The probability that a given computer chip will fail is 0.02. Find the probability that of 5 delivered chips, exactly 2 will fail

Solution

Note that the probability of x successes out of n trials is          
          
P(n, x) = nCx p^x (1 - p)^(n - x)          
          
where          
          
n = number of trials =    5      
p = the probability of a success =    0.02      
x = the number of successes =    2      
          
Thus, the probability is          
          
P (    2   ) =    0.003764768 [ANSWER]