how do i plot a logistic curve?
I am trying to plot a logistic curve and determine r2 values for 13 data points
(0,38558),(10,49371),(20,62980),(30,76212),(40,922 28),(50,106022),(60,123203),(70,132165),(80,151326 ),(90,179323),(100,203212),(110,226546),(120,24871 0),(130,281422)
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