Question

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.

Answer 1

In a random sampling, three items are selected so it could be anyof the following:

(a) All defective or

(b) All non-defective or

(c) Combination of defective and non defective.

Sample space associated with this experiment is

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