# T.DIST

Returns the Student's left-tailed t-distribution.

## Syntax

T.DIST(X,Deg_freedom,Cumulative)


### Parameters

Term Definition
X The numeric value at which to evaluate the distribution.
Deg_freedom An integer indicating the number of degrees of freedom.
Cumulative A logical value that determines the form of the function. If cumulative is TRUE, T.DIST returns the cumulative distribution function; if FALSE, it returns the probability density function.

## Return value

The Student's left-tailed t-distribution.

## Remarks

This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.

## Example

EVALUATE { T.DIST(60, 1, TRUE) }


Returns,

[Value]
0.994695326367377