What type of power does a supervisor have over the workforce?

Is it important to make eye contact with your audience when using presentation aids?

A) No; your audience will be looking at your presentation aid only at that point. B) No; some cultures find eye contact improper. C) Yes; you will want to make sure everyone can see your presentation aid. D) Yes; it is best if you look your audience in the eye rather than facing your image or object.

Non-probability samples are usually adequate for pilot studies

Indicate whether the statement is true or false.