# T.DIST.2T function

The T.DIST.2T function returns the two tailed Student distribution for a value x. Along with `T.DIST.RT`, this function replaces `TDIST` and is equivalent to calling `TDIST` with the tails argument set to 2.

## Parts of a T.DIST.2T function

`T.DIST.2T(x, degrees_freedom)`

 Part Description `x` Required. The x value to evaluate the distribution at. `degrees_freedom` Required. The degrees of freedom.

## Sample formulas

`Example 1: T.DIST.2T(1.96, 60)`

`Example 2: T.DIST.2T(1, 2)`

## Notes

• If deg_freedom is less than 1, returns an #NUM error.
• If x is negative, returns an #NUM error.
• Along with `T.DIST.RT`, this formula replaces the `TDIST` formula. This is equivalent to calling the `TDIST` formula with tails = 2.

## Examples

Result for A1=`T.DIST.2T(1.96, 60)`

 A B 1 0.054644929736529 2

Result for A1=`T.DIST.2T(1, 2)`

 A B 1 0.42264973081037 2

## Related functions

• T.DIST: The T.DIST function returns the right tailed Student distribution for a value x.
• T.DIST.RT: Returns the right tailed Student distribution for a value x.
• TDIST: Calculates the probability for Student's t-distribution with a given input (x).