cumulative form (TRUE or 1): Return the value of the cumulative distribution form.
probability density form (FALSE or 0): Return the value of the probability density form.
The WEIBULL function has been implemented as a two-parameter Weibull distribution, which requires that non-neg-x-value must be greater than or equal to 0.
Examples
=WEIBULL (1.5, 0.5, 2, 1) returns 0.579379973945885, the result of the cumulative distribution form of the Weibull function for the given values.
=WEIBULL (1.5, 0.5, 2, 0) returns 0.121422542634445, the result of the probability density form of the Weibull function for the given values.