The Principal of a Small Elementary School Wants to Select

question 505

Multiple Choice

The principal of a small elementary school wants to select a simple random sample of 24 students.
The school has 12 classrooms with 18 students in each class. She decides to randomly select two
Students from each classroom. Is this a simple random sample?

• A) No, because not all combinations of 24 students could have been chosen.
• B) Yes, because each student had an equal chance to be selected.
• C) No, because each student did not have an equal chance of being selected.
• D) Yes, because a stratified sample is a type of simple random sample.
• E) Yes, because the students were selected at random.

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Definitions:

Bilirubin

A bile pigment formed by the breakdown of hemoglobin in the liver.

Liver Disease

A variety of conditions affecting the liver, including infections, genetic disorders, and issues stemming from substance abuse.

Epithelial Cells

Cells that cover the surfaces of the body and its organs, forming the skin, lining of the respiratory, digestive, and urinary tracts.

Cells

The basic structural, functional, and biological units of all living organisms, acting as the building blocks of life.