Returns the inverse of the cumulative distribution function for the one-tailed chi-square distribution.
Returns a non-negative real number which is the inverse cumulative distribution function for the one-tailed chi-square distribution. If p = CHISQDIST(x;n), then CHISQINV(p,n) = x.
Probability is a real number from 0 to 1 or a reference to the cell containing that number which is the probability value for which the inverse of the chi-square distribution is to be calculated.
DegreesFreedom is a positive integer or a reference to a cell containing that number which is the degrees of freedom for the chi-square function.
- If Probability is greater than 1 or less than 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 truncates it to an integer.
For more details on the inverse chi-square distribution, visit Wikipedia
|=CHISQINV(0.75;5)||Inverse of the one-tailed probability of the chi-square distribution. Here we can check that =CHISQINV(CHISQDIST(0.020975769403022;5);5) returns 0.020975769403022.||0.020975769403022|
|=CHISQINV(1.2;5)||Number greater than 1 so the function returns an error value||Err:502|
|=CHISQINV(0.2;0.9)||DegreesFreedom less than 1 so the function returns an error value||Err:502|
Related LibreOffice functions:
Equivalent Excel functions: