What Is Random-Digit Sampling

question 96

Multiple Choice

What is random-digit sampling?

• A) choosing subjects selectively from a sampling frame
• B) dividing a population into equal and representative samples
• C) a telephone procedure for establishing random samples
• D) a procedure for producing experimental conditions

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Definitions:

Placenta

This organ, developing within the uterus during pregnancy, functions to feed the fetus with necessary nutrients and oxygen and clear out its waste products.

Gestational Age

The age of an embryo or fetus (or the duration of the pregnancy) starting from the first day of the mother's last menstrual period.

Thirty-Seven

A number, specifically the integer following thirty-six and preceding thirty-eight.

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and blood vessels.