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| 1. |
A lot contains 15 items of which 5 are defective. If three items are drawn at random, find the probability that (i) all three are defective |
| Answer» SOLUTION :A LOT contains 15 items of which 5 are defective. THREE items are drawn at random. As the items are drawn ONE after another, their probability `=5/15xx4/14xx3/13` | |