The common though incorrect view is that diplomats and soldiers do not have much in common, as the former ________ while the latter ________

A ________ sample is a probability sample in which the sampling frame initially consists of groups of elements.

Fill in the blank(s) with the appropriate word(s).

On which of the following do campaign ads for primary elections rarely focus?

a. issue positions  b. political party  c. name recognition  d. candidate's name