A cumulative average recalculates a data set's average as new data is added. During the recalculation all data contained in the data set is included in the average. In Microsoft Excel your spreadsheet ...

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 ...

A trendline in Excel is a line that shows a general trend (upwards/downwards or increase/decline). Thus, it can help in a quick interpretation of the data. The trendline in Excel can be added to a ...