### Module 2: Measurement in Statistics, Basic Math, Index Numbers

Module #2 introduces students to some common math procedures including percentages, decimals, ratios, and index numbers. This chapter and module looks at the importance of variable measurement-- including concepts such as the

*unit of analysis*and*level of measurement.***Goals/Objectives**- understand commonly reported statistics and connect them to the basic math used in statistics (including percentages, decimals, ratios, and index numbers)
- understand major indices such as CPI and be able to apply such indices to understand changes in goods such as tuition, salary, etc.
- be able to identify and correctly determine the level of measurement of variables
*and*the unit of measurement of variables

**Assigned Readings & PPT**- Bennett, Chapter 2: Measurement in Statistics
- Telling the Truth about Damned Lies & Statistics
- Chapter 2: Measurement in Statistics ppt

**Handouts and Extras**- CPI calculator
- Possible activity: Track Investment Stocks and Portfolio

**Assignment(s)**- Healey - Practice with Variables
- Healey - Practice with Variables KEY
- Index Numbers Practice

**Lab**- none

## Assigned Readings & PPT

- Bennett, Chapter 2: Measurement in Statistics
- Telling the Truth about Damned Lies & Statistics

Chapter 2: Measurement in Statistics ppt

## Handouts & Extras

- CPI calculator
- Possible activity: Track Investment Stocks and Portfolio

## Assignment(s)

- Healey - Practice with Variables
- Healey - Practice with Variables KEY
- Index Numbers Practice (embedded below or click for Printer-Friendly version)
- Index Numbers Practice Key

## Lab

- none