# TINV

## Definition

Calculates the inverse of the two-tailed TDIST function.

#### Sample Usage

`TINV(0.35, 1)`

`TINV(A1, A2)`

#### Syntax

`TINV(probability, degrees_freedom)`

`probability`

- The probability associated with the two-tailed t-distribution.Must be greater than

`0`

and less than`1`

.

`degrees_freedom`

- The number of degrees of freedom.Truncated to an integer in the calculation if a non-integer is provided as an argument.

Must be greater than or equal to

`1`

.

#### Notes

`TINV`

is to be used for the inverse of two-tailed`TDIST`

functions.`TINV`

is synonymous with`T.INV.2T`

.To calculate the negative inverse of the one-tailed

`TDIST`

function, use`T.INV`

.Both arguments to

`TINV`

must be numeric or a destination cell whose value is numeric.

#### See Also

`TDIST`

: Calculates the probability for Student's t-distribution with a given input (x).

`T.INV.2T`

: Calculates the negative inverse of the one-tailed TDIST function.

`T.INV`

: Calculates the inverse of the two-tailed TDIST function.

#### In order to use the TINV formula, start with your edited Excellentable:

#### Then type in the TINV formula in the area you would like to display the outcome

#### By adding the values you would like to calculate the TINV formula for, Excellentable will generate the outcome: