A box contains 20 electric bulbs out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is:
Answers
Answered by
3
Hey
Here is your answer,
Total bulbs = 20
Defective = 4
Non - defective = 20-4 =16
Probability that at least one of these is defective = 4/20
= 1/5
Hope it helps you!
Here is your answer,
Total bulbs = 20
Defective = 4
Non - defective = 20-4 =16
Probability that at least one of these is defective = 4/20
= 1/5
Hope it helps you!
Answered by
2
Hey
Here is your answer,
Total bulbs = 20
Defective = 4
Non - defective = 20-4 =16
Probability that at least one of these is defective = 4/20
= 1/5
Hope it helps you!
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