Researchers believe that ________ is pervasive because it serves specific functions, the two most important of which are ego-defensive functions and value-expressive functions

What type of informative speech is useful for talking about abstract or complicated subjects?

A) description B) explanation C) demonstration D) repetition

Which one of the following lists shows measures of dispersion only?

a. mean, median, and mode b. mode, maximum, and minimum c. range, median, and mode d. mean, median, and maximum e. range, minimum, and maximum