LOGNORMDIST function Returns the cumulative lognormal distribution of x, where ln(x) is normally distributed with the par...

LOGNORMDIST function

Returns the cumulative lognormal distribution of x, where ln(x) is normally distributed with the parameters mean and standard_dev. Use this function to analyze data that has been logarithmically transformed.

Syntax

LOGNORMDIST(x,mean,standard_dev)

x     is the value at which to evaluate the function.

Mean     is the mean of ln(x).

Standard_dev     is the standard deviation of ln(x).

Remarks

• If any argument is nonnumeric, LOGNORMDIST returns the #VALUE! error value.

• If x ≤ 0 or if standard_dev ≤ 0, LOGNORMDIST returns the #NUM! error value.

• The equation for the lognormal cumulative distribution function is:

  

Example

X	Mean	StdDev	Formula	Description (Result)
4	3.5	1.2	=LOGNORMDIST([X],[Mean],[StdDev])	Cumulative lognormal distribution at 4 with the specified arguments (0.039084)