Question: Eight memory chips, bought at a special price, are installed in a microcomputer in order to provide additional memory of 16K. Suppose that two of

Eight memory chips, bought at a special price, are installed in a microcomputer in order to provide additional memory of 16K. Suppose that two of the eight chips are defective. To determine the defective chips, each chip is tested individually until the second defective chip is discovered. Find the probability that the second defective chip is the 1. third chip tested, 2. sixth chip tested.

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