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Formula generator for CHIDIST FUNCTION function

The CHIDIST function calculates the right-tailed chi-squared distribution, which is often used in hypothesis testing. It returns the probability of observing a chi-squared test statistic greater than a given value, based on the degrees of freedom.

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How to generate an CHIDIST FUNCTION formula using AI.

To obtain information on the ARRAY_CONSTRAIN formula, you could ask the AI chatbot the following question: “ To get the CHIDIST formula for your data, you can ask the AI chatbot the following question: "What is the Excel formula used to calculate the chi-square cumulative distribution function (CHIDIST)?"

CHIDIST FUNCTION formula syntax

The CHIDIST function in Excel is used to calculate the probability that a value from a chi-squared distribution falls below a given value. The syntax for the CHIDIST function is: CHIDIST(x, degrees_freedom) - x: The value at which you want to calculate the probability. - degrees_freedom: The number of degrees of freedom for the chi-squared distribution. The CHIDIST function returns the probability as a decimal value between 0 and 1.

Use Cases & Examples

In these use cases, we use the CHIDIST function to calculate the cumulative probability for a given chi-square value.

Hypothesis Testing


Calculates the probability of observing a chi-squared test statistic greater than x, given the degrees of freedom.


CHIDIST(x, degrees_freedom)

Quality Control


Determines the probability of observing a chi-squared test statistic greater than x, which can be used to assess the quality of a manufacturing process.


CHIDIST(x, degrees_freedom)

Insurance Risk Assessment


Estimates the likelihood of a certain level of risk occurring in an insurance portfolio, based on the chi-squared distribution.


CHIDIST(x, degrees_freedom)

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Frequently Asked Questions

  • The CHIDIST function is used to calculate the one-tailed probability of the chi-squared distribution. It is commonly used in statistical analysis.
  • To use the CHIDIST function, you need to provide the observed value and the degrees of freedom. The formula syntax is CHIDIST(observed_value, degrees_of_freedom).
  • The significance level in the CHIDIST function is the probability threshold used to determine whether the observed value is statistically significant. It is commonly set to 0.05 or 0.01.
  • No, the CHIDIST function in Excel only calculates the one-tailed probability. If you need to perform a two-tailed test, you can double the result of the CHIDIST function.
  • The CHIDIST function assumes that the data follows a chi-squared distribution. If your data does not meet this assumption, the results may not be accurate.