Which of the Following Yields a Systematic Sample

question 166

Multiple Choice

Which of the following yields a systematic 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)A random sample of 15 students is selected from a class without replacement.

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Definitions:

Reaction Sites

Specific regions on a molecule where a chemical reaction occurs or is facilitated.

Particle Orientation

The specific alignment or direction of particles' axes relative to each other or to external fields, influencing their reactions and properties.

Kinetic Energy

The energy that an object possesses due to its motion, calculated as half the mass times the velocity squared.

Molecular Level

Pertains to the scale at which properties and phenomena are described in terms of molecules and their interactions.