DrLuther Has Accessed a List of All Public Elementary Schools

question 42

Multiple Choice

Dr.Luther has accessed a list of all public elementary schools in the state of California.He randomly selects 20 schools from the list and then randomly selects 100 students at each school to survey.What type of sampling method has Dr.Luther used?

• A)cluster
• B)simple random
• C)stratified
• D)systematic

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Definitions:

Nägele's Rule

A standard way of estimating the due date for a pregnancy based on the date of a woman's last menstrual period, adding one year, subtracting three months, and adding seven days to that date.

Menstrual Period

The monthly shedding of the uterine lining in women and female mammals, accompanied by bleeding.

Estimation

The process of making an approximate calculation or judgment about a quantity or value, often without exact data.

Cervical Biopsy

A medical procedure in which a small section of tissue is removed from the cervix for examination under a microscope to detect abnormalities or disease.