Data is rarely so uniform and predictable that plotting data points creates a perfectly linear arrangement. Scatter charts might have wildly varying plots that create a seemingly random correlation ...

You can make a line graph in Excel in a matter of seconds using data already entered into the spreadsheet.

With trendlines, Excel can project future figures based on previous history. Mary Ann Richardson points the way. Let’s say you are keeping track of monthly sales figures for the past six months ...

When you create a graph that includes dates, Excel 2013 automatically spaces the data in chronological order. This behavior potentially creates irregular spacing with unpredictable formatting. If the ...

I have a set of data, which I charted and then used the 'add trendline' tool to get a decent 2nd order poly. fit with the equation: y = -3E-39x^2 + 4E-19x + 3.4212 However, when I type this equation ...