Formulas and Functions

“Using the Keyboard and Mouse to Create and Edit Formulas” on page 26
“Pasting from Examples in Help” on page 41
TDIST
The TDIST function returns the probability from the student’s t-distribution.
TDIST(non-neg-x-value, degrees-freedom, tails)
 non-neg-x-value: The value at which you want to evaluate the function. non-neg-x-
value is a number value that must be greater than or equal to 0.
 degrees-freedom: Degrees of freedom. degrees-freedom is a number value and
must be greater than or equal to 1.
 tails: The number of tails to return.
one tail (1): Return the value for a one-tailed distribution.
two tails (2): Return the value for a two-tailed distribution.
Examples
=TDIST(4, 2, 1) returns 0.0285954792089682, for the one-tailed distribution.
=TDIST(4, 2, 2) returns 0.0571909584179364, for the two-tailed distribution.
Related Topics
For related functions and additional information, see:
“TINV” on page 297
“TTEST” on page 297
“Listing of Statistical Functions” on page 225
“Value Types” on page 36
“The Elements of Formulas” on page 15
“Using the Keyboard and Mouse to Create and Edit Formulas” on page 26
“Pasting from Examples in Help” on page 41
296 Chapter 10 Statistical Functions