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TDIST - script and chart function

TDIST() returns the probability for the Student's t-distribution where a numeric value is a calculated value of t for which the probability is to be computed.


TDIST(value, degrees_freedom, tails)

Return data type: number


Argument Description
value The value at which you want to evaluate the distribution and must not be negative.
degrees_freedom A positive integer stating the number of degrees of freedom.
tails Must be either 1 (one-tailed distribution) or 2 (two-tailed distribution).

This function is related to the TINV function in the following way:
If prob = TDIST(value, df ,2), then TINV(prob, df) = value


All arguments must be numeric, else NULL will be returned.

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