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  • is the numeric value to find the distribution.
  • is the degrees of freedom.
  • is the number of tails.
    • TDIST(),returns the Student t-distribution.


  • This function gives the value of the T-Distribution.
  • It is the continuous probability distributions.
  • The T-Distribution is also called Students T-Distribution.
  • This is the symmetric distribution like the Normal Distribution.
  • It is used when making inferences about a population mean when the population standard deviation is not known.
  • In , is the numeric value to find the value of the distribution.
  • is the integer which is indicating the number of degrees of freedom and is indicating the number of distribution tails.
  • Suppose Tail=1, then this distribution is One-Tailed Distribution and Tail=2, then this is Two-Tailed Distribution.
  • Also Tail=1, then it is calculated as , where is a random variable that follows the T-Distribution.
  • And Tail=2, then it is calculated as .
  • This function will return the result as error
     1. Any one of the argument is non-numeric. 
     2. DegreeOfFreedom<1 and Number<0. When we are giving DegreeOfFreedom and Tail as a decimals, then it is changing in to integers.


  1. =TDIST(1.82,55,1) = 0.037101192599
  2. =TDIST(1.82,55,2) = 0.074202385199
  3. =TDIST(5.9812,75,1)= 3.50350792266e-8
  4. =TDIST(5.9812,75,2) = 7.007015845328e-8
  5. =TDIST(2.4579,20.4,1) = 0.011612360861779858
  6. =TDIST(2.4579,20.4,1.2) = 0.011612360861779858

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See Also


List of Main Z Functions

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