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A carton of 24 bulbs contain 6 defactive...

A carton of 24 bulbs contain 6 defactive bulbs. One but is drawn at random. What is the probability that the bulbs is not defactive? If the bulb selected is defective nad it is not replaced and a second bulb ius selected at random from the rest, what is the probability that the second bulb is defactive?

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The correct Answer is:
P (not defective) `=(3)/(4)`, P (2nd bulb defective) `=(5)/(23)`
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