LOGNORM.DIST - Function returns the logarithmic distribution of x in Excel

The following article introduces you to the LOGNORM.DIST function - one of the functions in the statistical group is very popular in Excel.

LOGNORM.DIST - Function returns the logarithmic distribution of x in Excel Picture 1

Description: The function returns the logarithmic distribution of x. Where LN (x) is usually distributed with parameter mean and standard deviation. Support functions from Excel 2010 onwards.

Syntax: LOGNORM.DIST (x, mean, standard_dev, cumulative)

Inside:

- x : Value to evaluate the function, is a required parameter.

- mean: The average value of LN (x) , is a required parameter.

- standard_dev: Standard deviation of LN (x), is a required parameter.

- cumulative: A logical value that determines the form of the function, which is a required parameter, including:

+ cumulative = True -> returns the cumulative distribution function.

+ cumulative = False -> returns the probability density function.

Attention:

- Any argument except ( cumulative) is not a number -> function returns the #VALUE! Error value

- If x ≤ 0 or standard_dev ≤ 0 -> the function returns the #NUM! Error value

- The cumulative standard logarithmic distribution equation is:

LOGNORM.DIST (x, µ, o) = NORM.S.DIST (1n (x) -µ / o)

For example:

Find the cumulative standard probability and logarithmic distribution as described in the data table below:

LOGNORM.DIST - Function returns the logarithmic distribution of x in Excel Picture 2

1. Calculate cumulative standard logarithmic distribution.

- In the cell to calculate enter the formula : = LOGNORM.DIST (D6, D7, D8, D9)

LOGNORM.DIST - Function returns the logarithmic distribution of x in Excel Picture 3

- Press Enter -> cumulative standard logarithmic distribution is:

LOGNORM.DIST - Function returns the logarithmic distribution of x in Excel Picture 4

2. Calculate probability distribution logarithm.

- In the cell to calculate enter the formula: = LOGNORM.DIST (D6, D7, D8, D10)

LOGNORM.DIST - Function returns the logarithmic distribution of x in Excel Picture 5

- Press Enter -> probability plot distribution. was:

LOGNORM.DIST - Function returns the logarithmic distribution of x in Excel Picture 6

Above are instructions and some specific examples when using the LOGNORM.DIST function in Excel.

Good luck!