Cumulative Distribution Function (CDF) 1
Cumulative Distribution Function (CDF) 1 : Cumulative distribution functions are particularly useful for describing the likelihood that a variable will fall within different ranges of x. F(x) (i.e., the value of y at x in a CDF plot) is the probability that a variable will have a value less than or equal to x . Note: the original has a sample CDF plot that is not reproduced here. [USEPA, 1998a: Guidelines for Ecological Risk Assessment]