In a Random Sample, Cases Are Chosen

question 32

Multiple Choice

In a random sample, cases are chosen

• A) on the basis of some standard criterion, such as size of population.
• B) as haphazardly as possible.
• C) so that each case has an equal chance of being selected.
• D) from among materials the researcher happens to have at home or in the office.

Recognize the role of taxes and market incentives in shaping behaviors.

Appreciate the mutual benefits of trade and its exceptions.

Identify the causes and consequences of market failure.

Understand the premise of economic systems such as communism in resource allocation.

---

Definitions:

Variable Costs

Costs that vary in direct proportion to changes in the level of production or sales volume.

Variable Costs

Costs that change in proportion to the level of production or activity, such as materials and labor.

Sales

The transactions involving the exchange of goods or services for money.

Contribution Margin Ratio

A financial metric that measures how much of a company's revenue is left over after variable costs to cover fixed costs and generate profit.