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The values of many curves cannot be calculated analytically: the process requires painstaking numerical estimation. The values of a standard curve can be calculated once and published for ready reference. This means that, given any other curve in the same family, it is possible to transform it to the standard curve and the reference values can be used.
A reference line is a vertical or horizontal line in a graph, corresponding with user-defined values on the x-axis and y-axis respectively. Reference lines further aid the determination of angular and linear measurements.
Calculate the mean, which is the sum of the values divided by the number of values added together.
The average of a set of values is the sum of the values divided by the number of values.
summing the values and dividing by the number of values