Documentation/How Tos/Calc: TDIST function

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Calculates values for a Student's t-distribution.


TDIST(x; r; mode)

x is the value at which the distribution is calculated.
r, an integer >=1, is the degrees of freedom parameter for the t-distribution.
mode may be 1 or 2, to calculate the one or two tailed probability.
TDIST returns the probability density function for the t-distribution, calculating:
Calc tdist equation.png


TDIST(0.5; 2; 2)

returns approximately 0.666.


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