Comdell Computer receives computer chips from Chipco. Each batch sent by Chipco is inspected as follows:
35 chips are tested and the batch passes inspection if at most one defective chip is found in the set of 35 tested chips.
Past history indicates an average of 1% of all chips produced by Chipco are defective. Comdell has received 10 batches this week.
What is the probability that at least nine of the batches will pass inspection?