Descriptive Statistics Topic 2 Chapter 6

A. Types of data

Categorical variables Quantitative/numerical variables Quantitative discrete variables Quantitative continuous variables

B. Simple quantitative discrete data

Simple quantitative discrete data Organizing it Displaying it Describing the distribution Outliers Simple quantitative discrete data

C. Grouped quantitative discrete data

Class intervals Modal class

D. Quantitative continuous data

Histograms Class intervals Modal class

E. Measuring the center of data

Mode Mean Median Data in classes

F. Measuring the spread/dispersion of data

Range Quartiles & Interquartile Range (IQR) Standard Deviation

Please complete submit the exit ticket from Friday if you have not done so already.

G. Box and whisker plots

Drawing boxplots Interpreting boxplots Parallel boxplots Outliers

H. Cumulative frequency graphs

Constructing cumulative frequency tables Cumulative frequency graphs Percentiles