15 defective bulbs are accidentally mixed with 150 good ones .One bulb is taken out
randomly from this lot. Determine the probability that the bulb taken out is
(i) good one (ii) defective one
Answers
Answered by
2
Answer:
Number of defective bulbs = 15
Total of bulbs = 150
Number of good bulbs = 150 - 15
Good bulbs = 135
( i ) probability of taking a good bulb = 135/150
=> 9/10
( ii ) probability of taking a defective bulb = 15/150
=> 1/10
hope it helps you
Answered by
0
First
Probability
= Number of favourable outcomes / Total number of outcomes
= 150/165
= 10/11
Hence, probability of getting a good bulb is 10/11.
Second
Probability
= Number of favourable outcomes / Total number of outcomes
= 15/165
= 1/11
Hence, probability of getting a defective bulb is 1/11.
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