Which of the Following Meets the Requirements of a Cluster

question 82

Multiple Choice

Which of the following meets the requirements of a cluster sample?

• A) A population can be divided into 50 city blocks. The sample will include one hundred people who volunteer for the sample from any city block.
• B) A population can be divided into 50 city blocks. The sample will include one hundred people chosen at random, without regard to the city block where they live.
• C) A population can be divided into 50 city blocks. The sample will include all residents from two randomly chosen city blocks.
• D) A population can be divided into 50 city blocks. The sample will include two people chosen at random from each city block.

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Definitions:

Lungs

Pair of respiratory organs located in the chest, responsible for gas exchange between the air and the blood.

Acquired Immunodeficiency Syndrome

A chronic, potentially life-threatening condition caused by HIV, leading to severe damage to the immune system.

Immune System

The complex network of cells, tissues, and organs that work together to defend the body against attacks by foreign invaders, such as viruses, bacteria, and other pathogens.

Asymptomatic State

A condition wherein an individual is infected by a disease or virus but does not exhibit any noticeable symptoms.