in a box containing 100 bulbs 19 are defective.one bulb is taken out what is the probability of getting a non defective one.
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1
Answer:
4 / 5 is your answer.
Step-by-step explanation:
The probability of getting a non-defective bulb
= 100 - (19 + 2) / 100
= 100 - 20 / 100
= 80 / 100
= 8 / 10
= 4 / 5
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