Section 3: Graphing
An essential part of every experiment is recording observations and organizing data in easy-to-read tables and graphs. A graph is a visual display of information or data.
For example, a line graph shows trends or how data changes over time. How many hot dogs were sold on Thursday?
A bar graph is useful for comparing information collected by counting. How many people total thought grapes and bananas were the nicest fruits?
A circle graph shows how a fixed quantity is broken down into parts. What percentage of people’s favorite type of movie is drama?
- What is a graph?
- What type of graph best displays how data has changed over time?
- Identify the three types of graphs.