A Firm Is Producing 4 Units of Output at an Average

question 117

Multiple Choice

A firm is producing 4 units of output at an average total cost of $40. When the firm produces 5 units of output, average total cost rises to $50. What is the marginal cost of the fifth unit of output?

• A) $10
• B) $30
• C) $90
• D) $120

Understand the basic mechanisms of inhalation and exhalation in mammals.

Comprehend the structure and function of human respiratory systems and comparative respiratory systems in other animals.

Recognize the importance of gas exchange in the respiratory process.

Identify the role and mechanisms of hemoglobin in oxygen transport.

---

Definitions:

Stratified Random Sampling

A method of sampling that involves dividing a population into smaller groups known as strata based on shared characteristics and then randomly sampling from these strata.

Strata

Layers or levels within a larger population that are distinguished by one or more characteristics, used in stratified sampling to improve the accuracy of the sample by ensuring it reflects the population's composition.

Subpopulations

Distinct groups within a larger population, distinguished by specific characteristics such as geography, interests, behaviour, or demographic traits.

Sampling Distribution

The probability distribution of a statistic based on a large number of samples or replications from a population.