Which of the Following Statements Is True

question 20

Multiple Choice

Which of the following statements is true?

• A) Systematic errors cannot be controlled by the researcher, but can be estimated through statistical testing.
• B) A problem may arise with cluster sampling if the characteristics and attitudes of the elements within the cluster are heterogeneous.
• C) If the elements of the population are quite similar, only a small sample is needed to accurately portray the characteristic of interest.
• D) A census is always more accurate than a sample study.

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Definitions:

Hematocrit

Hematocrit is a blood test measure that indicates the proportion of blood volume occupied by red blood cells, crucial for diagnosing anemia or polycythemia.

Hematocrit

The proportion of blood volume that is occupied by red blood cells, a crucial measurement in diagnosing and managing various medical conditions.

Erythrocytes

Red blood cells that are responsible for carrying oxygen from the lungs to all parts of the body and returning carbon dioxide to the lungs for exhalation.

Fibrinogen

A blood plasma protein that's converted to fibrin in the clotting process, essential for wound healing.