Question

multiple choice question
which of the following is the best definition of a statistical sample?
a portion, or part of the population of interest.
the entire set of individuals or objects or measurements of interest.
a random selection of 20 people to buy coffee at mikes on friday.
the arithmetic mean of a set of measurements.

Explanation:

• The first option matches the core definition of a statistical sample: a subset of the population we want to study.
• The second option defines a population, not a sample.
• The third option is a specific example of a sample, not a general definition.
• The fourth option defines the mean, a statistical measure, not a sample.

Answer:

A. A portion, or part of the population of interest.