45. ) 6 defective light bulbs are accidentally mixed with 24 good one.

1.	45. ) 6 defective light bulbs are accidentally mixed with 24 good one. One bulb is taken outrandom from this lot. Determine the probability that the bulb taken out is good(ii) Suppose the bulb drawn in (i) is defective and is not replaced. Now one bulb is drawnrandom from the rest. What is the probability that this bulb is defective ?one
Answer» Answer: i)24/30 = 4/5 ii) The DEFECTIVE bulb isnt replaced yet, which means it will also COUNT in the SAMPLE SPACE. i.e., 6/30 = 1/5 hope it HELPS!

45. ) 6 defective light bulbs are accidentally mixed with 24 good one. One bulb is taken outrandom from this lot. Determine the probability that the bulb taken out is good(ii) Suppose the bulb drawn in (i) is defective and is not replaced. Now one bulb is drawnrandom from the rest. What is the probability that this bulb is defective ?one

Answer»

Answer:

i)24/30 = 4/5

ii) The DEFECTIVE bulb isnt replaced yet, which means it will also COUNT in the SAMPLE SPACE. i.e., 6/30 = 1/5

hope it HELPS!

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