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Graph Pad: Data Analysis Resource Center
The GraphPad Statistics Guide is both a guide to doing statistical analyses with GraphPad Prism 7, and a concise review of statistical principles, emphasizing clear explanations with very little math. The GraphPad Curve Fitting Guide is...
Khan Academy
Khan Academy: Interpret Equations Graphically
Practice the connection between the graphical representation of equations and their algebraic solutions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.