31. T F It is seldom necessary to cite the source of statistics in a speech. 32. T F An advantage of using statistics in your speech is that numbers speak for themselves. 33. T F In most cases, you should round off statistics when presenting them in a speech. 34. T F To be most effective in a speech, statistics need to be interpreted and explained in terms that are meaningful to the audience. 35. T F It is almost always better to cite exact numbers rather than to round statistics up or down. Â