** Syntax**. WEIBULL.DIST(

** Definition**. This function returns the probabilities of a Weibull-distributed random variable. Use this distribution in a reliability analysis (for example, to calculate a device’s mean time to failure).

**Arguments**

. The value at which to evaluate the function.*x*(required). A parameter of the distribution.*alpha*(required). A parameter of the distribution.*beta*(required). The logical value that represents the type of the function. If*cumulative*(required)*cumulative*is TRUE, then WEIBULL.DIST() returns the value of the distribution function that is the probability that the number of random events is between 0 and*x*. If*cumulative*is FALSE, the WEIBULL.DIST() function returns the value ...

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