In Excel 2010, the Chidist function has been renamed the Chisq.Dist.Rt function.
The Excel Chidist function calculates the right-tailed probability of the chi-square distribution.
The syntax of the function is:
Where the function arguments are:
|x||-||The value at which the chi-square distribution is to be evaluated (must be ≥ 0).|
|degrees_freedom||-||degrees_freedom is a decimal, this is truncated to an integer).(If the supplied|
The above chart on the right shows the right-tailed chi-square distribution, with 1, 2 and 3 degrees of freedom.
Further information and examples of the Excel Chidist function are provided on the Microsoft Office website.
If you get an error from the Excel Chidist function this is likely to be one of the following:
|#VALUE!||-||Occurs if any of the supplied arguments are not recognised as numeric values.|