Read ds%20Scientific%20Method%20and%20Graphing.pdf text version

Observation:

Observation:

Inference:

Observation:

Observation:

Inference:

· Graphs help us visualize numerical data. · There are several different types of graphs:

­ Bar graphs ­ Pie graphs ­ Line graphs

Types of Relationships (between variables) Direct: as x increases y increases

Indirect: as x increases y decreases

Constant: as x increases y remains the same

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