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Suppose 3 bulbs are selected at random f...

Suppose 3 bulbs are selected at random from a lot. Each bulb is tested and classified as defective (D) or non defective (N). Write the sample space of this experiment.

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From a lot of 3 bulbs, the sample space for defective (D) and non-defective (N) bulb
`={DDD,DDN,DND,NDD,D"NN",NDN,"NN"D,"NNN"}`
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