Returns the probability density function or the cumulative distribution function for the chi-square distribution.
CHISQ.DIST(Number; DegreesFreedom; Cumulative)
Number is the chi-square value of the random sample used to determine the error probability.
DegreesFreedom are 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.
=CHISQ.DIST(3; 2; 0) equals 0.1115650801, the probability density function with 2 degrees of freedom, at x = 3.
=CHISQ.DIST(3; 2; 1) equals 0.7768698399, the cumulative chi-square distribution with 2 degrees of freedom, at the value x = 3.