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t_dist_2t

Student’s t two-tailed CDF.

v = t_dist_2t(x, deg_freedom)

Returns 2 * (1 - t_dist(|x|, df, true)) — the two-tailed probability that |T| ≥ x. x must be positive.

t_dist_2t(2.0, 10) % ≈ 0.073
  • t_dist — Student’s t left-tail PDF or CDF.
  • t_dist_rt — Student’s t right-tail CDF.
  • t_inv_2t — Inverse Student’s t two-tailed CDF.