Returns the one-tailed probability of the chi-squared distribution. 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.
X is the value at which you want to evaluate the distribution.
Degrees_freedom is the number of degrees of freedom.
- If either argument is nonnumeric, CHIDIST returns the #VALUE! error value.
- If x is negative, CHIDIST returns the #NUM! error value.
- If degrees_freedom is not an integer, it is truncated.
- If degrees_freedom < 1 or degrees_freedom > 10^10, CHIDIST returns the #NUM! error value.
- CHIDIST is calculated as CHIDIST = P(X>x), where X is a χ2 random variable.
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||Value at which you want to evaluate the distribution
||Degrees of freedom
||One-tailed probability of the chi-squared distribution, for the above terms (0.050001)