SOLUTION: A quality control engineer tests the quality of produced computers. Suppose that 5%
of computers have defects, and defects occur independently of each other. Find the probability
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-> SOLUTION: A quality control engineer tests the quality of produced computers. Suppose that 5%
of computers have defects, and defects occur independently of each other. Find the probability
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Question 1158650: A quality control engineer tests the quality of produced computers. Suppose that 5%
of computers have defects, and defects occur independently of each other. Find the probability
(a) of exactly 3 defective computers in a shipment of 10. (b) that the engineer at most 3 defective
computers out of 10. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! exactly 3 defective is 10C3*0.05^3*0.95^7=0.0105
at most 3 includes the above plus 0,1,2
for 2 it is 10C2*0.05^2*0.95^8=0.0746
for 1 it is 10*.95^9*0.05=0.3151
for 0 it is 0.95^10=0.5987
the sum is 0.9989, which is the answer
