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Compatibility function

WEIBULL

Returns the Weibull distribution; replaced by WEIBULL.DIST.

Rarely usedDifficulty 1500 · AdvancedUsage rank #475 of 520
Practice · 2 questions →

When to use it

The Weibull distribution. Replaced by WEIBULL.DIST.

The shape of it

Syntax
=WEIBULL(x, alpha, beta, cumulative)

Worked examples

  • Cumulative

    =WEIBULL(105,20,100,TRUE) → 0.929581

    Cumulative failure probability by 105.

  • Density

    =WEIBULL(105,20,100,FALSE) → 0.035589

    Density.

  • Exponential case

    =WEIBULL(1,1,1,TRUE) → 0.632120559

    Shape 1 is exponential.

Worth knowing

  • WEIBULL.DIST is identical.
  • Shape alpha then scale beta.
  • Reliability is 1 minus the cumulative value.

Where it goes wrong

  • #NUM! for negative x or non-positive parameters.
  • Flagged by the Compatibility Checker.

Related

FORECASTMODEPERCENTILEQUARTILERANKSTDEV

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