Approximations to the t distribution

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Abstract

In this paper, a few formulas are found to approximate the t cumulative distribution function. The formulas found in [5] to approximate the normal distributions are used to get good approximations for t. The derived formulas give good approximation for degrees of freedom greater than 3 and if the exact probabilities are less than 0.9.

Original languageEnglish
Pages (from-to)2445-2449
Number of pages5
JournalApplied Mathematical Sciences
Volume9
Issue number49-52
DOIs
StatePublished - 2015

Keywords

  • Approximation
  • Cumulative distribution function
  • Formula

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