Recitation 4 Chapter 16 and 10

STAT 113 Recitation Sections

Wutao Wei

CPI


\text{Dollars at year 2000}=\frac{\text{CPI at year 2000}}{\text{CPI at year 1990}}\times\text{Dollars at year 1990}

Index


\text{Index}=\frac{\text{Value}}{\text{Base Value}}\times 100

Variables

Graphs for categorical variables

Graphs for quantitative variables

Group discussion time

Tricks of presenting graphs

Much Larger?

Looks flat?

Still flat!

Significant?