T.INV function - The function returns the inverse value of the Student t distribution in Excel

The following article introduces you to the T.INV function - one of the functions in the statistical function group is very popular in Excel.

Description: The function returns the inverse value to the left of the Student's t-distribution. Support functions from Excel 2010 onwards.

Syntax: T.INV (probability, deg_freedom)

Inside:

- probability: Probability associated with t value of Student's t-distribution , which is a required parameter.

- deg_freedom: Number of degrees of freedom of the distribution, is a required parameter.

Attention:

- Any argument that is not a number -> the function returns the #VALUE! Error value

- If probability ≤ 0 or probability> 1 -> the function returns the #NUM! Error value

- If deg_freedom <1 -> the function returns the #NUM! Error value

- The minimum value of deg_freedom must be equal to 1.

For example:

Calculate the inverse value to the left of the Student 's t-distribution of values ​​in the following data table:

- In the cell to calculate enter the formula : = T.INV (D6, D7)

- Press Enter -> the inverse value to the left of the Student 's t-distribution is:

- If the number of degrees of freedom is less than 1 -> the function returns the #NUM! Error value

- Where the probability of combining with the t value is greater than 1 -> the function returns the #NUM! Error value

Above are instructions and some specific examples when using the T.INV function in Excel.

Good luck!