** Syntax**. EXPON.DIST(

** Definition**. This function returns the probabilities of an exponential distributed random variable. Use EXPON.DIST() to model the time between events. For example, you can calculate the probability that a call center will receive a call after three minutes, although the hourly average for incoming calls is three minutes.

**Arguments**

. The value of the function.*x*(required). The value that is passed.*lambda*(required). The logical value. If*cumulative*(required)*cumulative*is TRUE, the cumulative distribution is returned; otherwise, the probability density function is returned.

If *x* or *lambda* isn’t a numeric value, the EXPON.DIST() function returns the `#VALUE!`

error.

If *x* is less than 0, ...

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