What Type of Sampling Is Being Employed If the Country

question 16

Multiple Choice

What type of sampling is being employed if the country is divided into economic classes and a sample is chosen from each class to be surveyed?

• A) random sampling
• B) systematic sampling
• C) stratified sampling
• D) cluster sampling

---

Definitions:

Cell Metabolism

The intricate set of life-sustaining chemical transformations within the cells of living organisms, involving energy production and the synthesis of necessary compounds.

Tubular Secretion

The process in the nephron where substances are added from the blood into the filtrate for elimination from the body.

Pressure Filtration

A process where solid particles are separated from liquids through the application of pressure, forcing the liquid through a semipermeable barrier.

Distal Convoluted Tubules

A portion of the kidney nephron that lies between the loop of Henle and the collecting ducts, involved in the reabsorption of water, sodium, and glucose.