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In a box containing 15 identical bulbs, ...

In a box containing 15 identical bulbs, 5 are defective. If 5 bulbs are drawn at random from the box with replacement, find the probability that
(i) none is defective
(ii) only one of them is defective
(iii) atleast one of them is defective

Text Solution

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The correct Answer is:
(ii) `(50)/(143)` (iii) `(131)/(143)`
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