This paper presents a conceptual analysis for students' images of graphs and their extension to graphs of two-variable functions. We use the conceptual analysis, based on quantitative and ...
Microsoft Excel can perform numerous statistical functions, as well as create charts from statistical data. Statistical data includes numeric variables or word variables, also called categorical ...
Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. Never use more dimensions in your figure than there are variables in the data ...
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