# CHISQ.INV

## What is CHISQ.INV Function?

The CHISQ.INV function is a statistical function that is used to calculate the inverse of the cumulative distribution function of the chi-squared distribution. In simpler terms, it returns the value of the chi-squared distribution for a given probability.

This function takes two arguments: probability and degrees of freedom. Probability is the probability of the chi-squared distribution. Degrees of freedom is the number of independent variables in a sample.

## How to Use CHISQ.INV Function in Power BI?

To use the CHISQ.INV function in Power BI, you need to follow these steps:

1. Open Power BI and go to the Data tab.

2. Select the data table you want to work with.

3. Click on the New Measure option under the Calculations tab.

4. Type in the following formula to use the CHISQ.INV function:

``` CHISQ.INV(probability, degrees_of_freedom) ```

5. Replace the values of probability and degrees_of_freedom with the appropriate values.

6. Click on the OK button to create the new measure.

Your new measure will be created and you can use it in your Power BI report.

## Examples of Using CHISQ.INV Function

Now that you know how to use the CHISQ.INV function, let’s take a look at some examples:

### Example 1: Finding the Chi-Squared Value for a Given Probability and Degrees of Freedom

Suppose you have a sample of 100 observations and you want to find the chi-squared value for a probability of 0.05 and 5 degrees of freedom. To do this, you can use the CHISQ.INV function as follows:

``` CHISQ.INV(0.05, 5) ```

The result will be 11.0705.

### Example 2: Using CHISQ.INV Function in a Measure

Suppose you have a data table that contains the sales data for a company and you want to calculate the chi-squared value for a probability of 0.05 and 5 degrees of freedom. To do this, you can create a new measure using the CHISQ.INV function as follows:

``` ChiSquared = CHISQ.INV(0.05, 5) ```

You can now use this measure in your Power BI report to analyze your data.

The CHISQ.INV function is a powerful tool for statistical analysis in Power BI. By using this function, you can calculate the inverse of the cumulative distribution function of the chi-squared distribution, which can help you make important decisions based on your data. By following the steps outlined in this article, you can start using the CHISQ.INV function in your Power BI reports today.

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