The Dean of Students Mailed a Survey to a Total

question 91

Multiple Choice

The Dean of Students mailed a survey to a total of 400 students.The sample included 100 students randomly selected from each of the freshman,sophomore,junior,and senior classes on campus last term.What sampling method was used?

• A)Simple random sample
• B)Systematic sample
• C)Stratified sample
• D)Cluster sample

---

Definitions:

Arbuscule

A specialized tree-like structure formed within the cells of plant roots by certain types of fungi in a symbiotic mycorrhizal relationship.

Mycorrhizal Fungus

A type of fungus that forms a symbiotic relationship with the roots of a plant, exchanging nutrients and water in a way that benefits both organisms.

Macronutrient

A type of nutrient required in large amounts for proper growth, metabolism, and physiological function, including carbohydrates, proteins, and fats.

Membrane Permeability

A measure of the ability of a biological membrane to allow substances to pass through it, which can be affected by factors such as temperature and pH.