I have a set of data that are basically used to plot points on a graph. When calculating standard deviation I have only ever calculated it with one variable. Is it possible to do it when there's a variable affecting the value you want to calculate the standard deviation for? I have length and 1/Root(C) which we can call X for now: example of the data:
length:x
0.1:0.139
0.2:0.288
0.6:1.052
Could I multiply each number by a value that makes there length = to the largest length (0.6) then use the mean of the values example
0.1:0.139
becomes
0.6:0.834