The variance is figured by dividing the sum of squared deviations by

If you just declined an invitation to go out with friends so that you can study and then another friend offers you a beer, according to research in this chapter, what can you do to exert some self-control and stick with your study plan?

a. Give up. There's nothing you can do now; you've already seen the beer. b. Take a break and collect yourself. You can resist the temptation. c. Promise yourself you'll only have one. It can't affect studying that much. d. Have a cookie instead. You deserve some treat.

Personal power is the process of gaining, using, sharing or relinquishing power, control, and

A) emotionality. B) intelligence. C) decision making. D) knowledge.