WorksheetFunction.ChiDist Method
Returns the one-tailed probability of the chi-squared distribution.
Syntax
expression.ChiDist(Arg1, Arg2)
expression A variable that represents a WorksheetFunction object.
Parameters
| Name | Required/Optional | Data Type | Description |
|---|---|---|---|
| Arg1 | Required | Double | The value at which you want to evaluate the distribution. |
| Arg2 | Required | Double | The number of degrees of freedom. |
Return Value
Double
Remarks
The χ2 distribution is associated with a χ2 test. Use the χ2 test to compare observed and expected values.
For example, a genetic experiment might hypothesize that the next generation of plants will exhibit a certain set of colors. By comparing the observed results with the expected ones, you can decide whether your original hypothesis is valid.
- If either argument is nonnumeric, ChiDist generates an error.
- If x is negative, ChiDist generates an error.
- If degrees_freedom is not an integer, it is truncated.
- If degrees_freedom < 1 or degrees_freedom > 10^10, ChiDist generates an error.
- ChiDist is calculated as ChiDist = P(X>x), where X is a χ2 random variable.