What term is used to describe the situation where sampling units contained in a sample do not produce sample observations?

Less care has to be exercised in the design of a form that is part of a functional operating system of an organization than in designing a form that is not part of an operating system

Indicate whether the statement is true or false.

In an international dispute, a general principle of law would be applied in settling the dispute

only if the principle is part of the law of both nations involved in the dispute. Indicate whether the statement is true or false