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Their are 100...

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Their are 100 bulbs in that 30 are detected find the probability

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Total number of bulb =100
Number of defected bulb =30
Numer of undefected bulb = 70

Probability of bulb being defected = number of defected bulb/total number of bulb = 30/100 = 0.3

Probability of bulb being undefected = number of undefected bulb/total number of bulb = 70/100 = 0.7

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