Coverage

• Kinds of variables
• Categorical (e.g. major, native language, eye color)
• Quantitative (e.g. time, distance, height)
• Ways to show distributions of categorical data
• Tables
• Bar graphs
• Pie charts
• Ways to show distributions of quantitative data
• Stemplots (also called stem and leaf plots)
• Frequency bar charts and histograms

Presentation slides

Collected data

This covers reported activity during the week before the first class. The excel datasheet has three quantitative variables:

• Hours spent watching television (tv)
• Hours spent playing video games (vgame)
• Hours spent surfing the World-Wide Web (WWW)