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# 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

Given,3 bulbs are selected at random classified as defective (D),non-defective (N)
$\therefore$ The sample space S is
$S=\{DDD,DDN,DND,DNN,NDD,NDN,NND,NNN\}$