Determining parameters of lognormal distributions from minimal information.
The lognormal distribution has a number of properties that do not lend themselves to simple "back-of-the-envelope" calculations. Mathematical relationships are presented for the basic parameters of the large population lognormal distribution as a function of characteristics available to, or needed by, the risk analyst. A freeware computer program called LOGNORM4 has been written to take the tedium out of determining various characteristics of lognormal distributions, given 1 of 15 sets of values that uniquely specify a lognormal distribution.
Strom
D J
DJ
Risk Analysis and Health Protection Group, Pacific Northwest National Laboratory, Richland, Washington 99352, USA. daniel.j.strom@pnl.gov
Stansbury
P S
PS
D003627:Data Interpretation, Statistical; D004782:Environmental Health / Q000706:statistics & numerical data*; D015386:Hazardous Substances / Q000633:toxicity*; D006801:Humans; D008962:Models, Theoretical; D018570:Risk Assessment; D012984:Software
D015386:Hazardous Substances