It Is Essential That Each Class Grouping or Interval in a Frequency

question 25

Short Answer

It is essential that each class grouping or interval in a frequency distribution be_____ and_____
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Definitions:

Selective Sample

A subset of a population chosen for a study because it represents a larger group on some criteria, but it might not fully represent the entire population due to the selection process.

Biased Sample

A non-representative sample that does not accurately reflect the demographics or characteristics of the larger population.

Case Study

is a detailed examination of a particular case (such as a person, group, or event) over a period of time, often used in social, psychological, or educational research.

Representative Sample

A subset of a population that accurately reflects the members of the entire population.