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9.A bin contains 64 light bulbs of which 10 are defective. a) If 5 light bulbs are randomly selected from the bin WITH replacement, find

9.A bin contains 64 light bulbs of which 10 are defective.

a) If 5 light bulbs are randomly selected from the bin WITH replacement, find the probability that all the bulbs selected are good ones.

b) If 5 light bulbs are randomly selected from the bin WITHOUT replacement, find the probability that all the bulbs selected are good ones.

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