GAMMA.DIST

The GAMMA.DIST function calculates the gamma distribution, a 2-parameter continuous probability distribution.

Sample Usage

GAMMA.DIST(4.79, 1.234, 7, TRUE)

GAMMA.DIST(A1, B1, C1, FALSE)

Syntax

GAMMA.DIST(x, alpha, beta, cumulative)

  • x - The input to the gamma probability distribution function. The value at which to evaluate the function.

  • alpha - The shape of gamma distribution.

  • beta - The scale of the distribution.

  • cumulative - Logical value that determines the form of the function.

    • If TRUE: GAMMA.DIST returns the left-tailed cumulative distribution function.

    • If FALSE: GAMMA.DIST returns the probability density function.

Notes

  • x, alpha, and beta must be numeric.

  • alpha and beta must be greater than zero.

  • If alpha is less than or equal to 1 and cumulative is FALSE, then x must be greater than zero; otherwise, x must be greater than or equal to zero.

  • GAMMA.DIST is synonymous with GAMMADIST.

  • The chi-squared distribution is a special case of the gamma distribution. For an integer n > 0, GAMMA.DIST(x, n/2, 2, cumulative) is equivalent to CHISQ.DIST(x, n, cumulative).

See Also

CHISQ.DIST: Calculates the left-tailed chi-squared distribution, often used in hypothesis testing.

GAMMADIST: Calculates the gamma distribution, a two-parameter continuous probability distribution.

Example

Evaluate the probability density function of the gamma distribution at x = 5 with alpha = 3.14 and beta = 2.

  A B C D
1 x alpha beta solution
2 5 3.14 2 0.1276550316
4 5 3.14 2 =GAMMA.DIST(5, 3.14, 2, FALSE)
5 5 3.14 2 =GAMMA.DIST(A2, B2, C2, FALSE)
true
Visit the Learning Center

Using Google products, like Google Docs, at work or school? Try powerful tips, tutorials, and templates. Learn to work on Office files without installing Office, create dynamic project plans and team calendars, auto-organize your inbox, and more.

Search
Clear search
Close search
Google apps
Main menu