Returns the right-tailed probability density function or the cumulative distribution function for the chi-square distribution.
CHISQ.DIST(Number; DegreesFreedom; Cumulative)
Returns a real number which is the right-tailed chi-square distribution value for the given arguments. The function returns either a probability density function or cumulative distribution function which has a non-negative range, i.e. [0, +∞).
Number is a real number or a reference to the cell containing that number which is the chi-square value of the random sample used to determine the error probability.
DegreesFreedom is a positive integer or a reference to a cell containing that number which is the degrees of freedom of the experiment.
Cumulative can be 0 or False to calculate the probability density function. It can be any other value or True to calculate the cumulative distribution function.
- If Number is less than or equal to 0, then the function returns an error value.
- If DegreesFreedom is less than 1, the function returns an error value.
- If DegreesFreedom is a non-integer numeric value, then the function uses its floor value, i.e. it is truncated to an integer.
The formula for CHISQ.DIST is:
If Cumulative is FALSE, CHISQDIST returns 0 for x=0, an error value for x<0 and the value
If Cumulative is TRUE, CHISQDIST returns 0 for x=0, an error value for x<0 and the value
Here x is the Number and n is the DegreesFreedom.
For more details on chi-square distribution, visit Wikipedia.
|=CHISQ.DIST(3; 2; 0)||The probability density function with 2 degrees of freedom, at Number = 3.||0.1115650801|
|=CHISQ.DIST(3; 2; 1)||The cumulative chi-square distribution with 2 degrees of freedom, at the value Number = 3.||0.7768698399|
|=CHISQ.DIST(-3; 2; 0)||Number is less than 0 hence the function returns an error value||Err:502|
Related LibreOffice functions:
Equivalent Excel functions: