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In a box containing 15 bulbs, 5 are defe...

In a box containing 15 bulbs, 5 are defective.
If 5 bulbs are selected at random from the box, find the probability of the event, that
(i) None of them is defective
(ii) Only one of them is defective.
(iii) Atleast one of them is defective.

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The correct Answer is:
`=(131)/(143).`
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-PROBABILITY-EXERCISE-9(b)
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