Question

according to your textbook, when you use statistics in a speech, you should usually
multiple choice
use a large number of statistics.
combine the statistics with a hypothetical example.
increase your speaking rate when giving statistics.
round off complicated statistics.
manipulate the statistics to make a point.

Explanation:

When using statistics in a speech, using a large number can overwhelm the audience. Combining with a hypothetical example is not a general rule for using statistics. Increasing speaking rate when giving statistics is not advisable as it may make the statistics hard to follow. Manipulating statistics is unethical. Rounding off complicated statistics makes them easier for the audience to understand and remember.

Answer:

round off complicated statistics.