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:

Anorexia Nervosa

A psychological and potentially life-threatening eating disorder characterized by self-starvation and excessive weight loss.

Impulsivity

The tendency to act on impulses rather than thought, often resulting in actions without consideration of the consequences.

Anorexia

An eating disorder characterized by an obsessive fear of gaining weight, resulting in severe restriction of food intake and often starvation.

Bulimia

Also known as bulimia nervosa, a serious eating disorder marked by binge-eating followed by purging behaviors such as vomiting or excessive exercise.