Lesson 1-1:
Experiencing the Investigatory Process
Research Problem
Statement
Hypothesis
Design
Data
. . . .

Types of Graphs

There are two main types of graphs: line and bar. Usually, a graph follows a data table. The numerical data in the table can be transformed into line and bar graphs.

Note how the data in the table is converted into a line graph.

Salt Concentrations
(% by Mass)
Average Number
of Germinated Rice Seeds
0.0 50
1.0 37
2.0 25
3.0 18
4.0 10

Note how the same data is converted into a bar graph.

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