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In the manufacturing of an electronic part, the
Chapter , Problem 6.31(choose chapter or problem)
In the manufacturing of an electronic part, the probability of a part being defective is 3 %. (a) What are the probabilities that, in a batch of 100 parts, 1 will be defective? 4 will be defective? 15 will be defective? (b) What should be the probability (P) of a part being defective if we do not want more than l out of 10 parts to fail with a chance (probability) of 99% (i.e., the probability of 0 or 1 part failing is 99%)? This part of the problem may need a trial-and-error solution. 6
Questions & Answers
QUESTION:
In the manufacturing of an electronic part, the probability of a part being defective is 3 %. (a) What are the probabilities that, in a batch of 100 parts, 1 will be defective? 4 will be defective? 15 will be defective? (b) What should be the probability (P) of a part being defective if we do not want more than l out of 10 parts to fail with a chance (probability) of 99% (i.e., the probability of 0 or 1 part failing is 99%)? This part of the problem may need a trial-and-error solution. 6
ANSWER:Step 1 of 3
In the manufacturing of an electronic part, the probability of a part being defective is 3%.
Let 
When an item is selected at random, the probability that the item is defective is
Now, 