Saying "goin" instead of "going" reflects a problem in

The textbook advises that a speaker who has an accent that is different from listeners

should a. speak slowly and distinctly. b. recognize that the accent is bad and try to change it. c. emphasize the accent and make it more pronounced. d. speak at a faster rate, hoping that the audience will eventually understand it.

The kinds of numbers that summarize other numbers are called __________, ___________________, and _____________.

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