If Health Psychologists Discovered That the Greater Number of Cigarettes

question 5

Multiple Choice

If health psychologists discovered that the greater number of cigarettes people smoke each day the shorter their life-expectancy,this would demonstrate that:

• A) smoking and life-expectancy are negatively correlated.
• B) smoking and life-expectancy are positively correlated.
• C) smoking causes cancer.
• D) None of the answers is correct.

---

Definitions:

Contribution Margin

The difference between sales revenue and variable costs, indicating how much revenue contributes to covering fixed costs and generating profit.