In a random sampling three items are selected from a lot. Each item is tested and classified as defective (D) or non-defective (N). Write the sample space of this experiment.

Explanation

Three items are to be selected at random from a lot.


Each item in the lot is tested and classified as defective (D) or non-defective (N)


The sample space of this experiment is given by


S={DDD,DDN,DND,DNN,NDD,NDN,NND,NNN}