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:

Intervertebral Disk

A layer of cartilage separating adjacent vertebrae in the spine, functioning as a shock absorber and allowing flexibility and movement.

Thoracic Region

The portion of the body's trunk located between the neck and the abdomen, housing the chest organs including the heart and lungs.

Vertebra

One of the individual bones that make up the vertebral column (spine), providing structural support and protecting the spinal cord.

Pelvic Girdle

Site of attachment of the lower limb to the trunk; ring of bone formed by the sacrum and the coxal bones.