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A box contains 100 bulbs, 20 of which are defective. 10 bulbs are selected for inspection. Find the probability that : (i) all 10 arc defective (ii) all 10 are good (iii) at least one is defective (iv) None is defective |
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Answer» A box contains 100 bulbs, 20 of which are defective. 10 bulbs are selected for inspection. Find the probability that : (i) all 10 arc defective (ii) all 10 are good (iii) at least one is defective (iv) None is defective |
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