Foundational Definitions

To prepare for this module, please answer the following questions from the preparation readings and videos. Please contact the professor if you have questions.

- Define “statistical inference.”
- Identify AND define each letter in IVPPSS.
- What is the difference between a population and a sample?
- What is the difference between a parameter and a statistic?
- What word is always used in the descriptions of the population and parameter.
- What major goal of statistics (from the “Why Statistics is Important” module) explains how a parameter is related to a population and how a statistic is related to a sample? [In other words, what explains what a parameter does to a population and what a statistic does to a sample?]
- What “reality” (“Why Statistics is Important”) explains what a sample is relative to a population.
- What are the two major categories of variable types? How are they distinguished from each other?
- What are the two types of quantitative variables? How are they distinguished from each other?
- What are the two types of categorical variables? How are they distinguished from each other?
- What type of variable is “length of a pencil (mm)”?
- What type of variable is “type of pencil (wooden, synthetic, mechanical)”?
- What type of variable is “pencil lead type (soft, medium, hard)”?
- What type of variable is “number of pencils a student owns”?