One of the more useful features in Microsoft Excel is Insert Charts. You can create a wide variety of charts: bar, line, pie and others. While many charts only involve one variable, you can create ...
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 ...
Modern studies have shown that the XÌ„ control charts with variable parameters (VPs) detect process shifts faster than the traditional XÌ„ control charts. This article developed the economic design of ...
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