Documentation/How Tos/Calc: TDIST function

CALC FUNCTIONS

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• Devsq
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Probability and statistics

• B
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Correlation and line fitting

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See also (in the Array Function category); GROWTH, LINEST, LOGEST, TREND

Ranking

• Large
• Max
• Maxa
• Min
• Mina
• Percentile
• Percentrank
• Quartile
• Rank
• Small

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TDIST

Calculates values for a Student's t-distribution.

Syntax:

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:

Example:

TDIST(0.5; 2; 2)

returns approximately 0.666.

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See Also

• TINV
• TTEST

• Statistical functions

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