If Delta Airlines Selects Randomly a Set of 40 Flights

question 6

Multiple Choice

If Delta Airlines selects randomly a set of 40 flights on a given day, and then selects randomly a group of ten passengers on each of these flights to participate in an in-flight survey, the passengers are _____.

• A) PSU
• B) census
• C) systematic samples
• D) secondary sampling units

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Definitions:

Index to External Causes

A comprehensive listing used in healthcare to classify external causes of injuries, poisonings, and other adverse effects.

E-codes

Codes in the International Classification of Diseases (ICD) system that are used to classify environmental events, circumstances, and conditions as the cause of injury, poisoning, and other adverse effects.

Standardized Terminology

A consistent set of terms and definitions used within a specific discipline to ensure clear communication and understanding.

Multiaxial

Pertaining to or involving several different axes or dimensions, often used in psychological evaluations to assess different aspects of mental health.