There are 24 bulbs in a box. out of this 25% bulbs are defective. if a bulb is drawn at random from the box what is the probability that the bulb is not defective
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25% of 24 is 6 so out of the 24 bulbs, 6 will be defective.
The first draw would be 6/24 or 1/4 that the bulb is defective.
The second draw, talking into account there is no replacement is 6/23 defective or roughly 26.1%
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