Stratified Sampling May Be Used When

question 41

Multiple Choice

Stratified sampling may be used when

• A)subgroups that are representative of the whole population can be identified.
• B)natural subgroups are more homogeneous than the population they come from.
• C)an expert is available to identify a representative population.
• D)the sample is very small.
• E)none of the above.

---

Definitions:

Congested

Refers to an area or organ being overly filled or crowded, often leading to a blockage or accumulation, such as in the nasal passages or roads.

Cystic Fibrosis

A genetic disorder affecting the lungs and digestive system by clogging them with thick, sticky mucus.

High-Frequency Chest Wall Oscillation (HFCWO)

A therapy that involves the use of a vest that vibrates at high frequency to loosen mucus in the lungs, facilitating breathing.

Mucus Viscosity

A measure of the thickness or stickiness of mucus, which can affect respiratory function and is considered in medical diagnoses and treatments.