Graphical Analysis Concepts and Applications

This tutorial covers the use of Graphical Analysis software to analyze data sets. It explains how to identify dependent and independent variables, edit column options, and enter data into tables. The video demonstrates plotting data points, adjusting graph settings, and using curve fitting and interpolation to predict values. An example of non-linear data analysis is provided, showing how to apply different curve fits. The tutorial concludes with a summary of Graphical Analysis capabilities and resources for further questions.

What is the independent variable in the study time vs. exam score example?

• Exam score

• Data table

• Study time

• Graph title

Where should the dependent variable be placed on a graph?

• On the y-axis

• In the data table

• In the graph title

• On the x-axis

What can be edited by clicking on the 3 dots on the column heading?

• Data points

• Axes labels

• Column title, units, and precision

• Graph title

What is the default precision for study time in the example?

• No decimal places

• Three decimal places

• One decimal place

• Two decimal places

What is the purpose of generating a best-fit line or curve?

• To predict values for unmeasured data

• To make the graph look better

• To edit column options

• To change the graph title

How can you autoscale a graph in Graphical Analysis?

• By adjusting the column options

• By clicking the magnifying glass

• By changing the graph title

• By clicking the document icon

What is the expected exam score for 7.2 hours of study time?

• 85 points

• 63 points

• 45 points

• 72 points

What type of curve fit was found to be suitable for the investment time vs. account balance example?

• Linear fit

• Proportional fit

• Exponential fit

• Quadratic fit

What is the expected account balance for an investment time of 25 months?

• $40.00

• $50.00

• $45.71

• $34.00

What should you do if you have questions about using Graphical Analysis?

• Contact your professor

• Read the manual

• Search online

• Ask a friend