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The probability that a bulb produc...

The probability that a bulb produced by a factory will fuse after 6 months of use is 0.05 . Find the probability that out of 5 such bulbs
(i) none will fuse after 6 months of use
(ii) at least one will fuse after 6 months of use
(iii) not more than one will fuse after 6 months of use.

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