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A lot of 20 bulbs contain 4 defective ones. One bulb is selected at random
What is the probability that this bulb is defective? Suppose the bulb selected - TENE
case is not defective and is not replaced. Now one bulb is selected at randort
rest. What is the probability that this bulb is not defective
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Answer:
No of bulbs=20
No of defective bulbs= 4
P(E)= No of favorable outcome/Total no of outcomes
P(E)= 4/20
= 1/5
ekanshhpraveen3:
Probability of bulb not being defective= 1-P(E)
= 1- 1/5
1-1/5
=4/5
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