Which of the Following Yields a Stratified Sample

question 126

Multiple Choice

Which of the following yields a stratified sample?

• A)All students in a class are divided into groups of 15.One student is randomly chosen from the 1st group,the remaining observations are every 15th student thereafter.
• B)The best 15 students,according to the opinion of the instructor,in a class are selected.
• C)All students in a class are grouped according to their gender.A random sample of 8 is selected from the males and a separate random sample of 7 is drawn from the females.
• D)The first 15 students in a class are selected without replacement.

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Definitions:

Nervous System

The network of nerve cells and fibers that transmits nerve impulses between parts of the body, governing both voluntary actions and involuntary responses.

Electrochemical Communication

The process by which neurons communicate with each other, involving electrical signals within neurons and chemical signals (neurotransmitters) between neurons.

Neurons

Electrically excitable cells in the nervous system that process and transmit information through electrical and chemical signals.

Motor Neurons

Specialized neurons that transmit impulses from the spinal cord or brain to muscle or glandular tissue.