The commands pt and qt compute probabilities and
quantiles (or percentiles) of the t distribution. To compute the
probability that A t random variable with 4 degrees of freedom is
below 2.31, use
To compute the 75-th percentile of the t distribution with 7 degrees
of freedom, i.e. qthe value t* such that a t random variable
with 7 degrees of freedom has probability 0.75 of being below t*,
use
Try some examples of your own in the work area below.
Work Area
Enter your own commands here; then click the Submit button.
Luke Tierney
2001-12-03