Descriptive statistics are defined as which of the following?

Descriptive statistics are defined as which of the following?

• A. Statistical procedures used to summarize, organize, and simplify data.
• B. Procedures that generalize findings to a population.
• C. Tests to compare means.
• D. Methods to estimate population parameters.

Answer: (A)

Descriptive statistics focus on summarizing and organizing data to reveal what the data look like. This includes measures of central tendency and variability (like the mean and standard deviation) and ways to present data (tables, graphs) so you get a clear snapshot of the dataset. They describe the data you have, not what lies beyond it. The other ideas describe inferential work: generalizing findings to a population, testing whether means differ, or estimating population parameters. Those require drawing conclusions beyond the observed data, which is not what descriptive statistics do. So the best choice is the one that describes procedures used to summarize, organize, and simplify data. For example, reporting the average score and the spread for a set of test results illustrates descriptive statistics in action.

Descriptive statistics focus on summarizing and organizing data to reveal what the data look like. This includes measures of central tendency and variability (like the mean and standard deviation) and ways to present data (tables, graphs) so you get a clear snapshot of the dataset. They describe the data you have, not what lies beyond it.

The other ideas describe inferential work: generalizing findings to a population, testing whether means differ, or estimating population parameters. Those require drawing conclusions beyond the observed data, which is not what descriptive statistics do. So the best choice is the one that describes procedures used to summarize, organize, and simplify data. For example, reporting the average score and the spread for a set of test results illustrates descriptive statistics in action.