Chapter 4

Chapter Objective:

* Graphs and tables are visual tools for showing and analyzing data.

Vocabulary:

Data - data is information, usually in the form of numbers, that can be represented in graphs, tally charts, line plots and stem-and-leaf plots.

Table - A table organizes and presents data in rows and columns.

Tally chart - A chart that organizes data in groups of five.

Row - A row is a horizontal line of data in a table.

Column - A column is a vertical line of data in a table.

Intersection - The intersection is the area of a table where a row and a column meet.

Line graph - A graph that shows how data changes over time.

Horizontal axis - The horizontal axis on a graph runs straight across from left to right.

Vertical axis - The vertical axis on a graph runs straight up and down.