1a. In probability samples, the probabilities of each element must be

A. known

B. unequal

C. equal

D. known and equal

E. known and unequal

1b. It is not uncommon for secondary data to be expressed in units different from those deemed most appropriate for the project at hand.

A. True B. False

1c. The recording of a respondent's social class using the categories upper, middle, and lower represents the use of a nominal scale.

A. True B. False

1d. The calculation of means is appropriate with ordinal data.

A. True B. False

-An ordinal scale implies order but not identity. ... -With an ordinal scale we can say the difference between the first and second is the same as the difference between the second and the third. -The calculation of means is appropriate with ordinal data. - Grade point average is a good example of an ordinal scale. quizlet.com > 5-6-flash-cards 5-6 Flashcards | Quizlet