If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

A percentile graph visualizes the percentiles of a given data set. The graph will show a box suspended on the graph that represents the area between the 25th and 75th percentile. The graph will also ...

Two columns or rows of data in Microsoft Excel may contain useful information, but you'll just have a set of numbers. You can give spreadsheet viewers a graphical representation of those numbers by ...