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Table Of Contents
Analyzing Collected Data
In the Vernier DataQuest™ application, use Graph View to analyze data. Start
by setting up graphs, and then use analysis tools such as integral, statistics,
and curve fit to investigate the mathematical nature of the data.
Important: The Graph menu and Analyze menu items are only available when
working in Graph View.
Finding the Area Under a Data Plot
Use Integral to determine the area under a data plot. You can find the area
under all of the data or a selected region of the data.
To find the area under a data plot:
1. Leave the graph unselected to examine all the data, or select a range to
examine a specific area.
2. Click Analyze > Integral.
3. Select the plotted column name if you have more than a single column.
The data plot area is displayed in the View Details area.
Finding the Slope
Tangent displays a measure of the rate at which the data is changing at the
point you are examining. The value is labeled “Slope.
To find the slope:
1. Click Analyze > Tangent.
A check mark appears in the menu next to the option.
2. Click the graph.
The examine indicator is drawn to the nearest data point.
Data Collection 449