Returns the exponential distribution. Use EXPON.DIST to model the time between events, such as how long an automated bank teller takes to deliver cash. For example, you can use EXPON.DIST to determine the probability that the process takes at most 1 minute.

Sample Usage

Syntax

EXPON.DIST(x,lambda,cumulative)

The EXPON.DIST function syntax has the following arguments:

X Required. The value of the function.

Lambda Required. The parameter value.

Cumulative Required. A logical value that indicates which form of the exponential function to provide. If cumulative is TRUE, EXPON.DIST returns the cumulative distribution function; if FALSE, it returns the probability density function.

Remarks

If x or lambda is nonnumeric, EXPON.DIST returns the #VALUE! error value.

If x < 0, EXPON.DIST returns the #NUM! error value.

If lambda ≤ 0, EXPON.DIST returns the #NUM! error value.

The equation for the probability density function is:

The equation for the cumulative distribution function is:

In order to use the EXPON.DIST formula, start with your edited Excellentable:

Then type in the EXPON.DIST formula in the area you would like to display the outcome:

By adding the values you would like to calculate the EXPON.DIST formula for, Excellentable will generate the outcome:

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